composition

noun

com·​po·​si·​tion ˌkäm-pə-ˈzi-shən 

1

a

: the act or process of composing

specifically : arrangement into specific proportion or relation and especially into artistic form

the painting's unique composition

b(1)

: the arrangement of type for printing

hand composition

(2)

: the production of type or typographic characters (as in photocomposition) arranged for printing

2

a

: the manner in which something is composed

b

: general makeup

the changing ethnic composition of the city's population

c

: the qualitative and quantitative makeup of a chemical compound

the chemical composition of a polymer

3

: mutual settlement or agreement

The two parties came to a composition.

4

: a product of mixing or combining various elements or ingredients

a composition of rubber and cork

5

: an intellectual creation: such as

a

: a piece of writing

especially : a school exercise in the form of a brief essay

wrote a composition on the role of the police in our society

b

: a written piece of music especially of considerable size and complexity

Her composition for piano and flute was played at the recital.

6

: the quality or state of being compound

7

: the operation of forming a composite function

also : composite function

compositional

ˌkäm-pə-ˈzi-sh(ə-)nəl 

adjective

compositionally adverb

Synonyms of composition

• piece
• work
• masterpiece

Examples of composition in a Sentence

the changing composition of the country's population

the composition of a chemical compound

The teacher reminded us to hand in our compositions at the end of class.

Recent Examples on the Web

The researchers examined its composition and formation using techniques including X-ray photoelectron spectroscopy, time-of-flight secondary ion mass spectrometry and transmission electron microscopy. — Atharva Gosavi, Interesting Engineering, 22 Sep. 2026

Songs typically carry two copyrights — one for the composition, usually held by songwriters and their publishers, and one for the sound recording, usually owned by the label. — Cerys Davies, Los Angeles Times, 21 Sep. 2026

Keeping an eye on the moon The Lunar Reconnaissance Orbiter, or LRO, has been a workhorse since launching in 2009, using seven instruments to create maps of the moon’s temperature, surface composition, topography and radiation. — CNN Money, 21 Sep. 2026

The problem was that those ratios depend not only on temperature but also on the composition of the water present in the animal’s body, which was something nobody could pin down for an extinct creature. — Jacek Krywko, ArsTechnica, 20 Sep. 2026

Word History

Etymology

Middle English composicioun, from Anglo-French composicion, from Latin composition-, compositio, from componere — see compose

First Known Use

14th century, in the meaning defined at sense 1a

Phrases Containing composition

• body composition

Rhymes for composition

• abolition
• acquisition
• admonition
• ammunition
• apparition
• apposition
• coalition
• competition
• definition
• deglutition
• demolition
• deposition

Kids Definition

composition

noun

com·​po·​si·​tion ˌkäm-pə-ˈzish-ən 

1

: the act or process of composing

2

: the manner in which the parts of a thing are put together : makeup

the composition of a painting

3

: the elements of a compound

the composition of rubber

4

: a product of combining ingredients : combination

a composition made of several different metals

5

: a literary, musical, or artistic production

especially : a short piece of writing done as a school exercise

Legal Definition

composition

noun

com·​po·​si·​tion

: an agreement between an insolvent debtor and several creditors whereby partial payment of the debts discharges in full the original obligations compare accord sense 3, compromise