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noun for·ma·tion \fȯr-ˈmā-shən\

Simple Definition of formation

  • : the act of forming or creating something

  • : something that is formed or created

  • : an orderly arrangement or group of people, ships, or airplanes

Source: Merriam-Webster's Learner's Dictionary

Full Definition of formation

  1. 1 :  an act of giving form or shape to something or of taking form :  development

  2. 2 :  something that is formed <new word formations>

  3. 3 :  the manner in which a thing is formed :  structure <the peculiar formation of the heart>

  4. 4 :  a major kind of plant growth (as forest, grassland, or tundra) characteristic of a broad ecological region

  5. 5 a :  any igneous, sedimentary, or metamorphic rock represented as a unit b :  any sedimentary bed or consecutive series of beds sufficiently homogeneous or distinctive to be a unit

  6. 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

  1. The book explains the formation of the planets.

  2. The soldiers were marching in formation.

  3. The team ran on the field and lined up in a punt formation.

15th Century

First Known Use of formation

15th century

Rhymes with formation

aeration, Alsatian, carnation, castration, causation, cessation, cetacean, citation, Claymation, cognation, collation, conflation, C ration, creation, cremation, crenation, Croatian, crustacean, dalmatian, damnation, deflation, delation, dictation, dilation, donation, earth station, elation, Eurasian, filtration, fixation, flirtation, flotation, foundation, frustration, gas station, gestation, gradation, gustation, guttation, gyration, hydration, inflation, lactation, legation, libation, location, lunation, lustration, luxation, migration, mutation, narration, negation, notation, oblation, oration, outstation, ovation, palmation, palpation, plantation, potation, predation, privation, probation, pronation, proration, prostration, pulsation, punctation, pupation, purgation, relation, rogation, rotation, salvation, sedation, sensation, serration, space station, stagflation, stagnation, starvation, striation, substation, summation, tarnation, taxation, temptation, translation, truncation, vacation, vexation, vibration, vocation, way station, workstation

FORMATION Defined for Kids


noun for·ma·tion \fȯr-ˈmā-shən\

Definition of formation for Students

  1. 1 :  a creation or development of something <the formation of good habits>

  2. 2 :  something that is formed or created <a cloud formation>

  3. 3 :  an arrangement of something <battle formation> <punt formation>

Medical Dictionary


noun for·ma·tion \fȯr-ˈmā-shən\

Medical Definition of formation

  1. 1:  an act of giving form or shape to something or of taking form :  development

  2. 2:  the manner in which a thing is formed :  structure

Seen and Heard

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