contraction

noun

con·​trac·​tion kən-ˈtrak-shən 

1

a

: the action or process of contracting

The hot metal undergoes contraction as it cools.

: the state of being contracted

b

: the shortening and thickening of a functioning muscle or muscle fiber

c

: a reduction in business activity or growth

d

: the act of acquiring or incurring (something, such as a debt) or catching (something, such as an infection)

contraction of pneumonia

2

: a shortening of a word, syllable, or word group by omission of a sound or letter

also : a form produced by such shortening

"They'll" is a contraction for "they will."

contractional

kən-ˈtrak-shnəl 

-shə-nᵊl

adjective

contractive

kən-ˈtrak-tiv  ˈkän-ˌtrak- 

adjective

contractionary

kən-ˈtrak-shə-ˌner-ē 

adjective

Synonyms

• compression
• squeezing
• contracting
• condensing
• condensation
• squeeze
• constriction

Examples of contraction in a Sentence

The hot metal undergoes contraction as it cools.

Two teams were eliminated in the contraction of the baseball league.

She felt contractions every two minutes.

Recent Examples on the Web

With the help of Cone Health Women's & Children's Center at Moses Cone Hospital staff, the couple — who was determined to share a last name before welcoming their baby girl into the world — still managed to wed, with Smith attending the ceremony while having contractions, the hospital revealed. —Becca Longmire, PEOPLE, 17 Oct. 2025

Italian scientist Alessandro Volta studied eel physiology to inspire the first battery, and recent work shows eels use doublets, two rapid spikes, to force rapid prey muscle contractions before the knockout blast. —Kaif Shaikh, Interesting Engineering, 17 Oct. 2025

The consensus looks for a 64 basis point contraction in profit margins this year, fading to 28 basis points for 2026 and then 8 to 10 basis points in 2027-28. —Jeff Cox, CNBC, 16 Oct. 2025

The process depends on the activation of ROCK1, a protein that regulates cell contraction. —New Atlas, 16 Oct. 2025

Word History

Etymology

Middle English contraccioun, borrowed from Anglo-French & Latin; Anglo-French contractiun, borrowed from Latin contractiōn-, contractiō "drawing together, compression of language," from contrac-, variant stem of contrahere "to draw together, reduce in size" + -tiōn-, -tiō, suffix of verbal action — more at contract entry 2

First Known Use

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

Rhymes for contraction

• abstraction
• attraction
• compaction
• detraction
• diffraction
• distraction
• exaction
• extraction
• impaction
• inaction
• infraction
• olfaction

Video

On Contractions of Multiple Words

You all would not have guessed some of these

Kids Definition

contraction

noun

con·​trac·​tion kən-ˈtrak-shən 

1

a

: the act or process of contracting : the state of being contracted

b

: the shortening and thickening of a working muscle or muscle fiber

2

a

: a shortening of a word, syllable, or word group by leaving out a sound or letter

b

: a form (as don't or they've) produced by such shortening

Medical Definition

contraction

noun

con·​trac·​tion kən-ˈtrak-shən 

1

: the action or process of contracting : the state of being contracted

contraction of hepatitis

lung expansion and contraction in breathing

—P. G. Donohue

2

: the action of a functioning muscle or muscle fiber in which force is generated accompanied especially by shortening and thickening of the muscle or muscle fiber or sometimes by its lengthening

isometric contraction

isotonic contraction

especially : the shortening and thickening of a functioning muscle or muscle fiber

3

: one of usually a series of rhythmic tightening actions of the uterine muscles (as during menstruation or labor)