speed
gb/spˈid/ us/spˈid/
A2
英語
~ 1300
語義
0件の語義
名詞
A2
quantity
1
rate of movement
How fast someone or something moves.
用法パターン：
the speed of [something]
よくある間違い：
Learners sometimes confuse 'speed' with 'time', saying 'the speed is 3 hours' instead of 'it takes 3 hours'.
類義語
velocity (More technical, often used in physics.)
対義語
slowness (Refers to a low rate of movement.)
コロケーション
high speed
|top speed
|speed limit
|average speed
|speed camera
テーマ
transportation
|science
|sports
|core_vocabulary
例文
- The car was traveling at a speed of 80 miles per hour.
- He increased his running speed to win the race.
- The train picked up speed as it left the station.
学習者向け例文
- The bus is moving at high speed.
- She runs at a good speed.
- The bike is going at slow speed.
動詞
B1
action
2
move quickly
To go from one place to another fast.
用法パターン：
to speed [somewhere]
よくある間違い：
Learners may incorrectly use 'speed' without 'up' when meaning 'increase speed', as in 'The car speed' instead of 'The car sped up'.
類義語
hurry (Implies urgency but not necessarily high velocity.)
対義語
crawl (To move very slowly.)
コロケーション
speed away
|speed off
|speed through
|speed past
テーマ
transportation
|daily life
|core_vocabulary
|travel
例文
- The ambulance sped through the traffic.
- She sped home after hearing the news.
- They sped past us on the highway.
学習者向け例文
- The car speeds down the road.
- He speeds to work every day.
- They speed past the bus stop.
名詞
A2
quantity
3
legal travel limit
The fastest you can legally drive on a road.
用法パターン：
the speed limit on [road] is [number]
よくある間違い：
Learners sometimes confuse 'speed limit' with 'average speed'.
類義語
velocity limit (Technical term, rare in everyday speech.)
対義語
no limit (A situation where no maximum speed is enforced.)
コロケーション
exceed the speed limit
|set a speed limit
|obey the speed limit
テーマ
law
|transportation
例文
- The speed limit here is 50 kilometers per hour.
- He was fined for breaking the speed limit.
- They plan to reduce the speed limit in school zones.
学習者向け例文
- The speed limit is 60 km/h.
- Do not drive over the speed limit.
- She drives under the speed limit.
名詞
B1
property
4
quickness in action
How fast you can do something.
類義語
quickness (Slightly more informal and general.)
対義語
sluggishness (Slow and lacking energy.)
コロケーション
work with speed
|speed and efficiency
|speed of response
テーマ
sports
|work
|core_vocabulary
例文
- Her typing speed is impressive.
- Speed is important in emergency situations.
- He admired the speed of her decision-making.
学習者向け例文
- My typing speed is fast.
- We need more speed in this game.
- He works with good speed.
名詞
informal
B2
entity
5
illegal stimulant drug
An illegal drug that makes people feel more awake and active.
類義語
amphetamine (Scientific term for the substance, used in medical contexts.)
コロケーション
take speed
|on speed
テーマ
drugs
|health
例文
- He was arrested for possessing speed.
- Speed can be highly addictive.
- They found packets of speed hidden in his car.
学習者向け例文
- Speed is a dangerous drug.
- He took speed last night.
- Police found speed in his bag.
文法
辞書形
speed
IPA
GB/spˈid/
US/spˈid/
音節・強勢
speed （1音節）
Stress on 1st syllable (speed)
活用形
Noun
- Base: speed
- Plural: speed, speeds
Verb
- Base: speed
- 3rd Person Singular: speeds
- Present Participle: speeding
- Past: sped, speeded
- Past Participle: sped
関連語
Forms
speeds
noun
speeding
verb
sped
verb
speeded
verb
Core family
speedy
adjective B1
Related words
speedometer
noun
speeder
noun B1
Advanced or less common
speedily
adverb B1
文法ポイント
- Irregular past participle: sped Verb
表現
at full speed
1/ˈæt fˈʊl spˈid/
fixed phrase
as fast as possible
Moving as fast as possible.
例文
- The ship was sailing at full speed.
- He ran at full speed to catch the bus.
more haste, less speed
1/mˈɔɹ hˈeɪst | lˈɛs spˈid/
idiom
hurrying causes delays or mistakes overall slowing progress overall
If you try to do something too quickly, you will make mistakes and take longer overall.
例文
- Remember, more haste, less speed — check your work carefully.
- She learned that more haste, less speed when she broke the vase while rushing.
need for speed
1/nˈid fɚ spˈid/
idiom
informal
strong desire to go very fast
A strong wish to go very fast, especially while driving or racing.
例文
- His need for speed got him into trouble with the police.
- She has always had a need for speed when skiing.
speed limit
1/spˈid lˈɪmɪt/
fixed phrase
legal maximum vehicle travel rate on road section
The fastest you can legally drive on a certain road.
例文
- This road has a speed limit of 70 mph.
- He was caught driving over the speed limit.
speed up
1/spˈid ˈʌp/
phrasal verb
increase movement rate or progress pace
To make something or someone go faster or happen sooner.
例文
- The driver sped up to overtake the truck.
- We need to speed up production to meet demand.