compression

noun

com·​pres·​sion kəm-ˈpre-shən 

1

a

: the act, process, or result of compressing

b

: the state of being compressed

2

: the process of compressing the fuel mixture in a cylinder of an internal combustion engine (as in an automobile)

3

: the compressed remains of a fossil plant

4

: conversion (as of data, a data file, or a communications signal) in order to reduce the space occupied or bandwidth required

compressional

kəm-ˈpresh-nəl 

-ˈpre-shə-nᵊl

adjective

Synonyms

• squeezing
• condensing
• contraction
• condensation
• squeeze
• contracting
• constriction

Examples of compression in a Sentence

the compression of a long, complicated story into a two-hour movie is never easy

Recent Examples on the Web

Suoco Travel Vacuum Bags Vacuum compression bags like these are a lifesaver for overpackers like me. —Chaise Sanders, Travel + Leisure, 12 Sep. 2025

Tons of Spanx shapewear and intimates are on sale, including this wireless bra that offers full coverage, compression, and barely-there straps. —Nicol Natale, PEOPLE, 12 Sep. 2025

If TPUs offer similar performance at better economics, Nvidia risks margin compression. —Trefis Team, Forbes.com, 11 Sep. 2025

New & Noteworthy ACE Flex Comfort Compression Knee Sleeves provide compression to help relieve muscle and joint stiffness, soreness and swelling, and are recommended for mild arthritis, sprains and strains. —Adam Mills, MSNBC Newsweek, 10 Sep. 2025

Word History

First Known Use

15th century, in the meaning defined at sense 1a

Rhymes for compression

• accession
• aggression
• concession
• confession
• depression
• digression
• discretion
• expression
• impression
• obsession
• oppression
• possession

Kids Definition

compression

noun

com·​pres·​sion kəm-ˈpresh-ən 

1

: the act, process, or result of compressing : the state of being compressed

2

: the process of compressing the fuel mixture in the cylinders of an internal-combustion engine

compressional

-(ə-)nəl 

adjective

Medical Definition

compression

noun

com·​pres·​sion kəm-ˈpresh-ən 

: the act, process, or result of compressing especially when involving a compressing force on a bodily part

compression of an artery by forceps

compression of the brain by the bones of a depressed fracture