boom
gb/bˈum/ us/bˈum/
A2
英語
~ 7400
fellendülés, konjunktúra, dörrenés, robaj, fellendül, virágzik, bumm, bum, vitorlarúd, gém, kameragém, mikrofonrúd, sorompó, dübörög, dörög, reklámoz, beharangoz, népszerűsít, úszó terelőgát, olajfogó gát
名詞
B1
1
fellendülés
B2
konjunktúra
C1
用法パターン：
a boom in [something]
The country enjoyed a technology boom in the early 2000s.
Az ország a 2000-es évek elején technológiai fellendülést élt meg.
After the war, there was a boom in car ownership.
A háború után jelentősen fellendült az autótulajdonlás.
Tourism is experiencing a real boom in this region.
The housing boom pushed prices to record highs.
Many new restaurants opened during the city’s economic boom.
学習者向け例文
The city is in a boom because many new jobs are coming.
A város fellendülőben van, mert sok új munkahely jön létre.
There was a big boom in online shopping last year.
Tavaly nagy fellendülés volt az online vásárlásban.
After the new train line opened, there was a boom in visitors.
The company grew fast during the tech boom.
People made a lot of money in the boom.
よくある間違い：
Learners sometimes confuse “boom” with “bump” or “bomb.” “Boom” in this sense is positive growth, not something negative. Also, learners may say *“a boom of tourism”*; the more natural phrase is *“a boom in tourism.”*
意味
period of rapid economic growth
コロケーション
economic boom
|housing boom
|baby boom
|boom in demand
|boom period
|boom years
類義語
upswing (More general word for improvement, not always as strong or fast as a boom.)
対義語
recession (Refers to a period of economic decline, the opposite of a boom in economic contexts.)
テーマ
economy
|business
|society
|finance
定義
A time when business or an activity grows very fast and does very well.
A period during which an economy, market, or activity experiences rapid growth and high levels of success.
名詞
A2
2
用法パターン：
a boom from [something]
There was a loud boom and the windows shook.
Hatalmas dörrenés hallatszott, és beleremegtek az ablakok.
We heard the boom of thunder in the distance.
Hallottuk a távoli mennydörgés robaját.
A dull boom came from the direction of the old factory.
The fireworks went off with a sharp boom.
The boom of the drum echoed through the hall.
学習者向け例文
We heard a big boom outside the house.
Nagy dörrenést hallottunk odakint.
The door hit the wall with a boom.
Az ajtó dörrenve csapódott a falnak.
After the flash of light, there was a boom.
I woke up when I heard a boom in the night.
Suddenly, a boom came from the street.
よくある間違い：
Learners sometimes use only “explosion” as a noun and forget they can use “boom” to describe the sound itself. Also, they may write *“hear a explode”* instead of *“hear a boom”* or *“hear an explosion.”*
意味
sudden loud deep sound
コロケーション
a loud boom
|a sudden boom
|with a boom
|the boom of thunder
|the boom of a gun
|a distant boom
類義語
bang (Common everyday word; often higher-pitched or sharper, while “boom” suggests deeper, heavier sound.)
対義語
silence (The absence of sound, which contrasts with a loud boom.)
テーマ
sound
|daily_life
|nature
|weather
定義
A sudden very loud and deep noise, like from a big hit or explosion.
A sudden, loud, deep sound, especially one made by an explosion, thunder, or something heavy hitting a surface.
動詞
B1
3
用法パターン：
[something] is booming
Online food delivery services are booming in major cities.
A nagyvárosokban virágzik az online ételkiszállítás.
The local tech scene is booming thanks to new investment.
Az új befektetéseknek köszönhetően virágzik a helyi technológiai szektor.
Her small shop is booming after going viral on social media.
The construction industry is booming again this year.
Tourism is booming as travel restrictions are lifted.
学習者向け例文
His business is booming right now.
A vállalkozása most virágzik.
Online sales are booming this month.
Ebben a hónapban szárnyalnak az online eladások.
The city is booming because many people move there.
The coffee shop started to boom after the good reviews.
The game company boomed after it released a hit game.
よくある間違い：
Learners sometimes say *“boom up”* or *“boom quickly”*; the usual pattern is simply *“is booming”* without an extra adverb or particle. They may also incorrectly use it for people (*“He is booming”*) instead of their business or career.
意味
to grow or prosper quickly
コロケーション
business is booming
|tourism is booming
|the industry is booming
|booming economy
|booming market
|booming sector
類義語
flourish (Slightly more formal; suggests healthy growth, not always as fast or dramatic as “boom.”)
対義語
decline (Describes a process of going down in success or size, the opposite of booming growth.)
テーマ
economy
|business
|society
|core_vocabulary
定義
To become very busy, big, or successful in a short time.
To grow or develop very quickly and successfully, especially for a business, industry, place, or activity.
B2
INFORMAL
4
bumm
A2
I hit “send” and boom, the email went to the whole company.
Megnyomtam a „Küldés” gombot, és bumm, az e-mail elment az egész cégnek.
One wrong word and boom, the argument started again.
Egyetlen rossz szó, és bumm, máris újrakezdődött a vita.
You add the final piece and boom, the puzzle is finished.
She clicked the button and boom, the screen went black.
I refreshed the page and boom, the tickets were sold out.
学習者向け例文
I pressed the key and boom, the game started.
Megnyomtam a billentyűt, és bumm, elindult a játék.
He said one bad thing and boom, she was angry.
Mondott valami rosszat, és bumm, a lány mérges lett.
We opened the door and boom, loud music hit us.
I tried the code and boom, it worked.
We turned the corner and boom, there was the sea.
よくある間違い：
Learners may overuse “boom” in formal writing, where it sounds too casual. It should be kept for speech, texting, or informal writing.
意味
exclamation for sudden impact
コロケーション
and boom, [result]
|then boom, [something happened]
|boom, done
|boom, there it is
類義語
bam (Very similar informal exclamation; often sounds slightly more playful or comic.)
対義語
oops (Exclamation for a mistake, contrasting with “boom” used for success or big impact.)
テーマ
conversation
|emotion
|slang
|communication
|core_vocabulary
定義
A short sound word you say to show something big, sudden, or impressive just happened.
An exclamation that imitates the sound of an explosion or is used to emphasize that something has happened suddenly, completely, or impressively.
名詞
C1
TECHNICAL
5
bum
C2
vitorlarúd
B2
用法パターン：
the boom of [a sailboat]
She ducked quickly as the boom swung across the deck.
Gyorsan lehajolt, amikor a bum átlendült a fedélzet fölött.
The wind caught the sail and slammed the boom to one side.
A szél belekapott a vitorlába, és oldalra csapta a bumot.
He tightened the line that holds the boom in place.
A loose boom can be very dangerous for people on board.
They lowered the boom before coming into the harbor.
学習者向け例文
Be careful, the boom can hit your head.
Vigyázz, a bum fejbe vághat.
The wind moved the sail and the boom swung.
A szél megmozdította a vitorlát, és a bum átlendült.
He fixed the boom at the bottom of the sail.
We pulled a rope to move the boom.
They took down the sail and then the boom.
よくある間違い：
Learners may confuse this “boom” with the loud sound. In sailing contexts, “boom” refers to the pole, not a noise.
意味
horizontal pole on a sailboat
コロケーション
the boom swings
|hit by the boom
|boom of the mainsail
|duck under the boom
|attach the boom
|boom vang
類義語
sail spar (More general technical term for any pole supporting a sail; less specific than “boom.”)
対義語
mast (Another main pole on a sailboat but vertical, contrasting with the horizontal boom.)
テーマ
transport
|sports
|technology
|travel
|transportation
定義
A long bar at the bottom of a boat’s sail that helps control the sail.
A long horizontal spar attached to the bottom of a sail, used on a boat to hold and control the sail.
名詞
B2
TECHNICAL
6
用法パターン：
a boom for [equipment]
The boom microphone dipped into the top of the shot.
A gémmikrofon belógott a kép felső részébe.
He adjusted the boom so the mic was just out of frame.
Úgy állította be a mikrofonrudat, hogy a mikrofon éppen a képen kívül maradjon.
The boom operator stood quietly above the actors.
They used a camera boom to get a smooth overhead shot.
She mounted the light on a boom arm over the desk.
学習者向け例文
The sound man holds the mic on a boom.
A hangtechnikus egy gémen tartja a mikrofont.
They use a boom so the camera can move smoothly.
Kameragémet használnak, hogy a kamera simán mozoghasson.
The microphone hangs from a long boom.
He moved the boom closer to the singer.
A boom lets the mic stay near the actor’s mouth.
よくある間違い：
Learners sometimes think “boom mic” is two separate ideas; it is a fixed term for a microphone on a boom, not a mic that makes a booming sound.
意味
support arm for mic or camera
コロケーション
boom microphone
|camera boom
|on the boom
|hold the boom
|boom operator
|boom arm
類義語
boom arm (A more specific compound term; used especially for stands and mounts.)
対義語
handheld (Describes equipment held directly in the hand instead of mounted on a boom.)
テーマ
media
|technology
|work
|arts_entertainment
定義
A long bar that holds a microphone or camera in the right place.
A long arm or pole used to hold and position a microphone, camera, or similar equipment, often so it can reach over people or objects.
名詞
B2
7
sorompó
A2
用法パターン：
a boom at [a gate/crossing]
We waited while the boom at the level crossing lifted.
Vártunk, amíg a vasúti átjárónál felemelkedett a sorompó.
The parking lot boom stayed down until we paid.
A parkoló sorompója lent maradt, amíg nem fizettünk.
A security guard stood next to the boom gate.
The train passed and the boom slowly rose.
Cars lined up in front of the lowered boom.
学習者向け例文
The boom at the train crossing went down.
A vasúti átjárónál leereszkedett a sorompó.
A car cannot pass until the boom goes up.
Egy autó nem tud áthaladni, amíg fel nem megy a sorompó.
The guard opened the boom for the truck.
They fixed the broken boom at the parking lot.
We stopped when we saw the boom in front of us.
よくある間違い：
This sense is more common in some varieties of English (e.g., Australian English) than others; learners may not recognize it and think only of the sound meaning.
意味
barrier bar at crossings or gates
コロケーション
railway boom
|level crossing boom
|boom gate
|raise the boom
|lower the boom
|security boom
類義語
barrier (General word for something that blocks movement; “boom” refers to the long horizontal bar type of barrier.)
対義語
open passage (Refers to movement without a barrier, opposite of a boom blocking the way.)
テーマ
transport
|infrastructure
|safety
|transportation
|travel
定義
A long pole that goes up and down to stop cars from passing.
A long bar that can be moved up or down to block or allow passage, used at level crossings, car parks, and security gates.
動詞
B2
8
用法パターン：
[something] booms
Thunder boomed overhead as the storm moved in.
Fölöttünk dörgött az ég, ahogy közeledett a vihar.
Cannons boomed in the distance all night.
Egész éjjel ágyúk dörögtek a távolban.
His voice boomed across the hall without a microphone.
Music boomed from the speakers at the festival.
The waves boomed against the rocky cliffs.
学習者向け例文
The big drum boomed in the room.
A nagy dob dübörgött a szobában.
Loud music boomed from the car.
Hangos zene dübörgött az autóból.
Thunder boomed and the lights went out.
His deep voice boomed in the small office.
Guns boomed during the military show.
よくある間違い：
Learners may try to use “boom” for any loud sound, even high and sharp ones; it is best for deep, heavy sounds rather than, for example, a small glass breaking.
意味
to make a loud deep sound
コロケーション
guns boomed
|music boomed
|thunder boomed
|voice boomed
|boom out
|booming loudly
類義語
rumble (Suggests a rolling, often softer or longer sound; “boom” is usually louder and more explosive.)
対義語
fade (Describes sound becoming weaker or disappearing, in contrast to loud booming.)
テーマ
sound
|nature
|war
|core_vocabulary
定義
To make a very loud and deep noise.
To produce a loud, deep, often continuous sound that can be heard over a distance.
動詞
C1
9
用法パターン：
to boom [a product/event/person]
The studio boomed the film as the must-see hit of the summer.
A stúdió a nyár kihagyhatatlan sikerfilmjeként reklámozta a filmet.
The company boomed its new phone on social media.
A cég nagy erőkkel reklámozta az új telefonját a közösségi médiában.
Local politicians boomed the project as a cure for unemployment.
The event was heavily boomed on radio and television.
Critics said the product was boomed far more than it deserved.
学習者向け例文
They boomed the new game on TV.
Nagyon reklámozták az új játékot a tévében.
The company boomed its product with big ads.
A cég nagy hirdetésekkel reklámozta a termékét.
The city boomed the festival to bring more tourists.
The book was boomed as the best of the year.
His manager boomed him as a future star.
よくある間違い：
This use is less common in modern everyday speech; learners might overuse it instead of more natural verbs like “promote,” “advertise,” or “hype.”
意味
to promote loudly or heavily
コロケーション
boom a product
|boomed as the next big thing
|boomed in the press
|heavily boomed
|boomed by advertisers
|boomed by the media
類義語
hype (Informal; suggests strong, sometimes exaggerated promotion similar to “boom.”)
対義語
ignore (To pay no attention and give no promotion, the opposite of booming something.)
テーマ
business
|media
|politics
|communication
定義
To talk about something a lot and very positively so that more people will like or buy it.
To advertise or praise something very strongly in order to increase its popularity or success.
名詞
C1
TECHNICAL
10
olajfogó gát
C1
用法パターン：
a boom around [oil/logs/debris]
Workers deployed an oil boom to limit the spill.
A munkások olajfogó gátat telepítettek, hogy korlátozzák a kiömlött olaj terjedését.
A floating boom surrounded the ship to catch any leaking fuel.
Úszó terelőgát vette körül a hajót, hogy felfogja az esetleg kiszivárgó üzemanyagot.
The log boom kept the timber from drifting downriver.
Crews installed a containment boom near the shore.
The boom redirected debris away from the intake pipes.
学習者向け例文
They put an oil boom on the water after the accident.
A baleset után olajfogó gátat helyeztek a vízre.
A boom stopped the trash from going into the lake.
Egy úszó terelőgát megakadályozta, hogy a szemét a tóba jusson.
The logs stayed together behind the boom.
Workers set a boom around the broken ship.
The boom helped protect the beach from the oil.
よくある間違い：
Learners may think “oil boom” only means a time of economic growth from oil; in environmental news, “oil boom” can also mean a floating barrier used to catch spilled oil.
意味
floating barrier on water
コロケーション
oil boom
|floating boom
|containment boom
|deploy a boom
|set up a boom
|log boom
類義語
containment barrier (A more descriptive technical phrase; less specific about being floating on water.)
対義語
open water (Water with no barrier to block movement of oil or debris.)
テーマ
environment
|industry
|transport
|nature
|science
定義
A long line of floating blocks or tubes on water that keeps oil, wood, or trash in one place.
A long floating barrier placed on the surface of water to contain or direct materials such as oil, debris, or logs.
文法
辞書形
boom
IPA
GB/bˈum/
US/bˈum/
音節・強勢
boom （1音節）
Stress on 1st syllable (boom)
活用形
Noun
- Base: boom
- Plural: booms
Verb
- Base: boom
- 3rd Person Singular: booms
- Present Participle: booming
- Past: boomed
関連語
Forms
booms
noun
booming
verb
boomed
verb
Related words
boomer
noun B2
Advanced or less common
boomy
adjective
boomtown
noun
表現
baby boom
1/bˈeɪbi bˈum/
fixed phrase
period of unusually high births
A time when an unusually large number of babies are born.
例文
- After the war there was a baby boom.
- The school was built to serve the children of the baby boom.
- Some countries are now seeing a new baby boom.
boom box
1/bˈum bˈɑks/
fixed phrase
informal
portable stereo with loud speakers
A portable music player with speakers that you can carry and play loudly, often using batteries.
例文
- He carried a boom box on his shoulder in the park.
- They played music from a small boom box at the beach.
- Her old boom box still works after all these years.
boom town
1/bˈum tˈaʊn/
fixed phrase
town growing very quickly
A town that becomes big and busy very quickly because of new jobs or money.
例文
- The small fishing village became a boom town after oil was found nearby.
- During the gold rush, many boom towns appeared in the region.
- The city is now a boom town thanks to the tech industry.
business is booming
1/bˈɪznɪs ˈɪz bˈumɪŋ/
fixed phrase
business is doing extremely well
Used to say that a business has many customers and is making a lot of money right now.
例文
- Our online store is open 24/7 and business is booming.
- Thanks to the holiday season, business is booming.
- With all the tourists in town, business is booming for local restaurants.
economic boom
1/ˌɛkənˈɑmɪk bˈum/
fixed phrase
time of strong economic growth
A time when a country’s economy grows very fast and many people and companies earn more money.
例文
- The region experienced an economic boom after oil was discovered.
- The economic boom led to a rise in living standards.
- Many new jobs were created during the economic boom.
housing boom
1/hˈaʊzɪŋ bˈum/
fixed phrase
rapid growth in housing market
A time when many homes are sold or built and house prices go up quickly.
例文
- The city is in the middle of a housing boom.
- During the housing boom, prices doubled in five years.
- The housing boom attracted many investors.
lower the boom (on someone)
1/lˈoʊɚ ðə bˈum ˈɔn sˈʌmwˌʌn/
idiom
informal
suddenly punish or act hard
To suddenly punish someone or act very strictly with them after a rule is broken.
例文
- The coach finally lowered the boom on players who were always late.
- If you cheat again, the boss is going to lower the boom on you.
- Parents sometimes have to lower the boom when children keep breaking the rules.
boom and bust
1/bˈum ˈænd bˈʌst/
idiom
cycle of growth then decline
A repeated cycle where the economy grows very fast and then goes down again.
例文
- The country has gone through several boom and bust cycles.
- The oil industry has always been a story of boom and bust.
- This industry is known for its boom and bust pattern.
- Politicians say they want to end the boom‑and‑bust cycle in housing.
- Better regulation could reduce the effects of boom and bust on small businesses.
- Farmers in the region are used to boom and bust years.
boom or bust
1/bˈum ˈɔɹ bˈʌst/
idiom
informal
either great success or failure
Used when something will either succeed in a very big way or fail completely, with little middle ground.
例文
- For many start-ups, it’s boom or bust in the first few years.
- The project is a boom or bust gamble for the company.
- In that risky market, it’s often boom or bust.
boom or bust
2/bˈum ˈɔɹ bˈʌst/
idiom
Either great success or total failure
a situation where something will either do very, very well or fail very badly, with nothing in between
例文
- For many startups it’s boom or bust within the first few years.
- Investing all your savings in one stock is a boom‑or‑bust strategy.
- It was boom or bust for the small mining town.
sonic boom
1/sˈɑnɪk bˈum/
fixed phrase
loud sound from supersonic travel
A very loud, explosive sound made when something, like a fast jet, travels through the air faster than the speed of sound.
例文
- People heard a sonic boom as the fighter jet passed overhead.
- The windows rattled when the sonic boom hit the town.
- Residents reported a mysterious sonic boom late last night.
sonic boom
2/sˈɑnɪk bˈum/
fixed phrase
technical
loud sound from breaking sound barrier
A very loud sound that happens when something, like a fast jet, moves faster than sound.
例文
- People reported hearing a sonic boom as the jet passed overhead.
- The windows rattled when the sonic boom hit the city.
- Sonic booms can cause minor damage to buildings.