compression
gb/kəmpɹˈɛʃən/ us/kəmpɹˈɛʃən/
B2
英語
~ 5900
語義
0件の語義
名詞
B2
action
1
pressing to make smaller or denser
The act of pushing or squeezing something so it takes up less space or becomes more solid.
用法パターン：
compression of [something]
よくある間違い：
Learners sometimes confuse "compression" with "compromise". "Compression" is about pressing or making smaller, while "compromise" is an agreement where both sides give up something.
類義語
squeezing (More informal and concrete; often used for everyday physical actions rather than scientific descriptions.)
対義語
expansion (Refers to something increasing in size or volume, the opposite physical effect of compression.)
コロケーション
compression of the air
|compression of the spine
|under compression
|subjected to compression
|compression force
|compression and tension
テーマ
physics
|daily life
|science
|core_vocabulary
例文
- The compression of the gas caused its temperature to rise.
- Over time, the compression of the soil made the ground hard and difficult to dig.
- The material is designed to spring back after compression.
- Engineers tested how much compression the metal bar could withstand before it bent.
- The foam mattress slowly returned to its original shape after compression.
学習者向け例文
- The compression of the sponge made it very thin.
- Air gets hot when it is under strong compression.
- This metal can resist a lot of compression.
- Compression of the ground made the road sink a little.
名詞
C1
action
2
making information short and dense
The act of saying or showing a lot of information in only a few words or in a small space.
用法パターン：
compression of [information/text/events]
よくある間違い：
Learners may confuse this sense with physical compression. When talking about text, speech, or stories, "compression" means making the information shorter and more concentrated, not physically pressing something.
類義語
condensation (More formal and slightly literary for making something shorter and more concentrated, especially in writing or speech.)
対義語
elaboration (Focuses on adding detail and making something longer or more detailed, the opposite of compressing information.)
コロケーション
a remarkable compression
|compression of time
|compression of events
|narrative compression
|verbal compression
|compression of complex ideas
テーマ
communication
|writing
|media
|education
例文
- The film is a clever compression of the 600-page novel into two hours.
- Good headlines are a form of extreme linguistic compression.
- His talk was an impressive compression of decades of research.
- The editor asked for greater compression in the opening chapter.
- Poetry often relies on compression to create powerful images with few words.
学習者向け例文
- This short book is a compression of many long reports.
- The teacher liked the compression of ideas in her summary.
- A news headline is a compression of the full story.
- Good notes use compression so they are short but clear.
名詞
technical
B2
action
3
medical pressure on body tissue
Strong, steady pressure put on part of the body to stop bleeding, reduce swelling, or give support.
用法パターン：
apply compression to [a body part]
よくある間違い：
Learners sometimes say *"make pressure" instead of "apply compression" or "apply pressure". Use the verb "apply" with "compression" in medical instructions.
類義語
pressure (A more general word; in a medical context it can refer to the same treatment, but it is not specific to therapeutic use.)
対義語
relief (In a medical context, removing pressure or easing tightness is the opposite of applying compression.)
コロケーション
apply compression
|compression therapy
|compression bandage
|compression stockings
|compression garment
|compression wrap
テーマ
medicine
|health
|sports
|body
例文
- Apply firm compression to the wound until the ambulance arrives.
- Compression can help reduce swelling after a sprained ankle.
- The doctor recommended compression therapy for her varicose veins.
- He wore a knee sleeve that provided gentle compression during his run.
- The nurse adjusted the bandage to maintain even compression on the arm.
学習者向け例文
- You should put compression on the cut to stop the blood.
- The doctor used compression to slow the bleeding.
- Compression and ice can help after you hurt your knee.
- She wears compression on her legs to help her veins.
名詞
technical
B2
action
4
reducing digital file size
A way of making a computer file smaller so it uses less space or sends faster, while still working correctly.
用法パターン：
compression of [data/files/images]
よくある間違い：
Learners sometimes think "compression" always reduces quality. In computing, "lossless" compression does not lose information, while "lossy" compression does.
類義語
data reduction (A more formal technical term; focuses on lowering the amount of data without necessarily implying a specific algorithm.)
対義語
decompression (Specifically refers to restoring compressed data to its original or usable form, the direct opposite process of compression.)
コロケーション
data compression
|file compression
|image compression
|video compression
|compression algorithm
|compression ratio
テーマ
computing
|technology
|internet
例文
- Better compression means you can store more photos on your phone.
- The software uses lossless compression for text files.
- Strong video compression allows movies to stream smoothly on slow connections.
- They adjusted the compression settings to balance image quality and file size.
- The backup system performs automatic compression before uploading your files.
学習者向け例文
- Compression makes the file smaller.
- We use compression so the video will load faster.
- This app can do strong compression of images.
- After compression, the photo took up less space.
名詞
technical
C1
action
5
reducing audio dynamic range
In sound work, a way to make quiet and loud sounds closer in volume so the sound is more even.
用法パターン：
compression on [vocals/instruments/audio track]
よくある間違い：
Learners may confuse audio "compression" with data compression. Audio compression is about changing loudness levels, not file size (though the same audio file can also use data compression).
類義語
leveling (Informal studio term; suggests smoothing out levels rather than the full technical process of compression.)
対義語
expansion (In audio, an effect that increases dynamic range, the opposite of compression.)
コロケーション
dynamic compression
|add compression
|heavy compression
|subtle compression
|compression on the vocals
|compression settings
テーマ
music
|technology
|media
|arts_entertainment
例文
- A bit of compression on the vocals makes them sit better in the mix.
- Too much compression can make the music sound flat and lifeless.
- The podcast uses gentle compression so voices stay at a steady level.
- Engineers adjusted the compression settings to tame peaks in the recording.
- Broadcast audio often uses strong compression to keep volume consistent.
学習者向け例文
- Compression makes the singer’s voice sound more even.
- With heavy compression, the music can lose feeling.
- They added compression to the guitar track.
- Good compression helps people hear every word clearly.
名詞
technical
C1
action
6
increasing pressure in engine cylinders
In a car or other engine, the step where the piston pushes the fuel and air into a smaller space to raise the pressure before it burns.
用法パターン：
compression in [an engine/cylinder]
類義語
pressurization (A more general technical term for increasing pressure, not limited to engines, and less commonly used in this specific context.)
対義語
decompression (Refers to the reduction of pressure, the opposite of compression in an engine cycle.)
コロケーション
engine compression
|high compression
|low compression
|compression stroke
|compression ratio
|loss of compression
テーマ
engineering
|automotive
|science
|technology
|transportation
例文
- Low compression in one cylinder can cause an engine to misfire.
- High compression engines usually produce more power but need better fuel.
- The mechanic ran a test to check the engine’s compression.
- During the compression stroke, the piston moves upward in the cylinder.
- A leak in the gasket led to a loss of compression.
学習者向け例文
- The car has a problem with engine compression.
- High compression can give an engine more power.
- The mechanic did a compression test on the motor.
- Bad compression can make the engine hard to start.
文法
辞書形
compression
IPA
GB/kəmpɹˈɛʃən/
US/kəmpɹˈɛʃən/
音節・強勢
com - pres - sion （3音節）
Stress on 2nd syllable (pres)
活用形
Noun
- Base: compression
- Plural: compression, compressions
関連語
Forms
compressions
noun
Core family
compress
verb B2
compressor
noun
Related words
Negative and opposite forms
incompressible
adjective
Advanced or less common
compressive
adjective
compressibility
noun
表現
chest compression
1/t͡ʃˈɛst kəmpɹˈɛʃən/
fixed phrase
technical
pressing on the chest in CPR
Hard, fast pushes on a person’s chest to move blood when their heart has stopped, as part of CPR.
例文
- Start chest compressions immediately if the person is not breathing.
- Proper chest compression depth is important for effective CPR.
- They practiced chest compressions on a training dummy.
compression bandage
1/kəmpɹˈɛʃən bˈændɪd͡ʒ/
fixed phrase
bandage that applies pressure
A bandage that is wrapped tightly to press on an injury to stop bleeding or reduce swelling.
例文
- The nurse applied a compression bandage to his ankle.
- Use a compression bandage after the ice pack.
- A proper compression bandage can help a sprain heal faster.
compression garment
1/kəmpɹˈɛʃən ɡˈɑɹmənt/
fixed phrase
tight clothing that gives support
Tight clothing, like shorts, shirts, or sleeves, that presses on the body to give support or help blood flow.
例文
- Athletes often wear a compression garment during training.
- The surgeon advised her to use a compression garment after the operation.
- He bought a compression garment to support his lower back.
compression ratio
1/kəmpɹˈɛʃən ɹˈeɪʃioʊ/
fixed phrase
technical
ratio of original to compressed size
A number that shows how much something has been made smaller by compression, by comparing before and after sizes.
例文
- This codec achieves a high compression ratio on video files.
- The engine’s compression ratio affects its power and efficiency.
- A better compression ratio means more data in less space.
compression socks
1/kəmpɹˈɛʃən sˈɑks/
fixed phrase
tight socks for leg support
Special tight socks that squeeze the legs gently to help blood move and to stop swelling.
例文
- She wears compression socks on long flights to prevent swelling.
- The doctor recommended compression socks for his circulation problems.
- Runners often use compression socks for extra support.
compression spring
1/kəmpɹˈɛʃən spɹˈɪŋ/
fixed phrase
technical
spring that works by being squeezed
A metal coil that is pushed shorter and then pushes back to its normal shape when you let go.
例文
- The pen uses a small compression spring inside the barrel.
- Engineers selected a stronger compression spring for the new design.
- A broken compression spring caused the machine to fail.
data compression
1/dˈætə kəmpɹˈɛʃən/
fixed phrase
technical
reducing the size of digital data
A method that makes digital information smaller so it takes less space or sends faster, but can still be used.
例文
- Modern video services rely heavily on data compression.
- Good data compression lets you store more files on the same drive.
- The engineer specializes in data compression algorithms.
file compression
1/fˈaɪl kəmpɹˈɛʃən/
fixed phrase
technical
making computer files smaller
The act of making computer files smaller so they use less disk space or are easier to send.
例文
- Use file compression before emailing large attachments.
- The backup software includes automatic file compression.
- File compression can make archives much easier to manage.
image compression
1/ˈɪmɪd͡ʒ kəmpɹˈɛʃən/
fixed phrase
technical
reducing digital image file size
A way of making picture files smaller so they load faster or use less space, sometimes with lower quality.
例文
- Heavy image compression can cause visible artifacts.
- Web designers often use image compression to improve page speed.
- Adjust the image compression level to balance quality and size.
lossless compression
1/ləslˈɛs kəmpɹˈɛʃən/
fixed phrase
technical
reversible data compression without loss
A type of compression where, after you decompress the file, you get exactly the same data as before, with nothing lost.
例文
- Text files usually use lossless compression.
- Choose lossless compression if you need perfect image quality.
- The program supports both lossy and lossless compression methods.
lossy compression
1/ləsi kəmpɹˈɛʃən/
fixed phrase
technical
irreversible compression that loses data
A type of compression that makes files smaller by throwing away some details, so you cannot get the exact original file back.
例文
- Most streaming music uses lossy compression.
- Heavy lossy compression can make images look blurry.
- They reduced the file size with strong lossy compression.
compression fracture
1/kəmpɹˈɛʃən fɹˈækt͡ʃɚ/
fixed phrase
technical
bone fracture from being crushed
A type of broken bone where the bone is squeezed and crushed, often in the spine.
例文
- The elderly patient suffered a compression fracture in her lower spine.
- Osteoporosis can lead to compression fractures in the spine.
- Osteoporosis increases the risk of compression fractures.
- The fall caused a compression fracture of one of his vertebrae.
- He wore a brace while his compression fracture healed.