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-ˈpre-sh(ə-)nəl 

adjective

Synonyms of compression

• 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

Not only do these packing cubes from Bagsmart aid in organization, but the compression technology works wonders to cut down on bulk. —Lydia Mansel, Travel + Leisure, 19 Dec. 2025

Slip on a pair of compression socks before your flight. —Katie Way, SELF, 19 Dec. 2025

Breast binders are compression garments worn to help women recover from mastectomies and also used to masculinize a person’s chest and reduce gender dysphoria. —Nathaniel Weixel, The Hill, 18 Dec. 2025

In the clip, Oshry, who welcomed her first son Reuben, with her husband, Ben Soffer, in May, reaches into her fridge to grab a head of cabbage, then rips open her animal-print bathrobe to show a compression bra stuffed with cabbage leaves. —Cara Lynn Shultz, PEOPLE, 16 Dec. 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