Function
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Function may refer to:
- Function (biology), explaining why a feature survived selection
- Function (mathematics), an abstract entity that associates an input to a corresponding output according to some rule
- Function (engineering), related to the utility/goal of a property
- Function (computer science), or subroutine, a portion of code within a larger program, performs a specific task
- Function object, or functor or functionoid, a concept of object-oriented programming
- Grammatical function, in language studies, the purpose of a word or phrase in a sentence
- Diatonic function describes a music term
- A formal event such as a party or meeting