Definition of formation
1 : an act of giving form or shape to something or of taking form : development
2 : something that is formed new word formations
3 : the manner in which a thing is formed : structure the peculiar formation of the heart
4 : a major kind of plant growth (as forest, grassland, or tundra) characteristic of a broad ecological region
5a : any igneous, sedimentary, or metamorphic rock represented as a unitb : any sedimentary bed or consecutive series of beds sufficiently homogeneous or distinctive to be a unit
6 : an arrangement of a body or group of persons or things in some prescribed manner or for a particular purpose flying in formation
Examples of formation in a sentence
The book explains the formation of the planets.
The soldiers were marching in formation.
The team ran on the field and lined up in a punt formation.
First Known Use of formation
FORMATION Defined for English Language Learners
Definition of formation for English Language Learners
: the act of forming or creating something
: something that is formed or created
: an orderly arrangement or group of people, ships, or airplanes
FORMATION Defined for Kids
Definition of formation for Students
1 : a creation or development of something the formation of good habits
2 : something that is formed or created a cloud formation
3 : an arrangement of something battle formation punt formation
Learn More about formation
See words that rhyme with formation Thesaurus: All synonyms and antonyms for formation Spanish Central: Translation of formation Nglish: Translation of formation for Spanish speakers Britannica English: Translation of formation for Arabic speakers Britannica.com: Encyclopedia article about formation
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