noun, often attributive com·bi·na·tion \ˌkäm-bə-ˈnā-shən\

Definition of combination

  1. 1a :  a result or product of combining Water is a combination of hydrogen and oxygen.; especially :  an alliance of individuals, corporations, or states united to achieve a social, political, or economic endb :  two or more persons working as a team Together they are a winning combination.

  2. 2 :  an ordered sequence: such asa :  a sequence of letters or numbers chosen in setting a lock What is the combination to the safe?; also :  the mechanism operating or moved by the sequenceb :  a rapid sequence of punches in boxingc :  any subset of a set considered without regard to order within the subset

  3. 3 :  any of various one-piece undergarments for the upper and lower parts of the body —usually used in plural wore combinations in the winter to keep warm

  4. 4 :  an instrument designed to perform two or more tasks The tool is a jackknife and bottle opener combination.

  5. 5a :  the act or process of combining; especially :  that of uniting to form a chemical compound The combination of these two chemicals can cause an explosion.b :  the quality or state of being combined


play \-shnəl, -shə-nəl\ adjective

Examples of combination in a sentence

  1. Water is a combination of hydrogen and oxygen.

  2. The car's interior is available in various color combinations.

  3. A combination of factors led to her decision.

  4. The milkshakes come in chocolate, strawberry, and vanilla, or any combination of these.

  5. He has the right combination of talent and experience.

  6. The combination of these two chemicals can cause an explosion.

  7. What is the combination to the safe?

Origin and Etymology of combination

see 1combine

First Known Use: 14th century

COMBINATION Defined for Kids


noun com·bi·na·tion \ˌkäm-bə-ˈnā-shən\

Definition of combination for Students

  1. 1 :  a result or product of combining or being combined I succeeded by a combination of hard work and luck.

  2. 2 :  a series of numbers or letters that is used to open a lock

Law Dictionary


noun com·bi·na·tion

Legal Definition of combination

  1. 1a :  an alliance of individuals, states, or especially corporations united to achieve a common (as economic) end — see also combination in restraint of trade — compare joint venture 1, merger b :  conspiracy

  2. 2 :  a union of old or new elements or parts that is patentable because it produces a new and useful result — compare aggregation 2, equivalent

Seen and Heard

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a rounded knoll or a ridge of ice

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