Word.ws English Dictionary

arity

/ˈæɹɪti/

arity noun: the number of arguments or operands a function or operation takes. For a relation, the number of domains in the corresponding Cartesian product.

Noun

arity (countable and uncountable, plural arities)

  1. The number of arguments or operands a function or operation takes. For a relation, the number of domains in the corresponding Cartesian product.
  2. The maximum number of child nodes that any node in a given tree (data structure) may have.
  3. (Lojban) the number of arguments (in Lojban grammar called sumti) specified in the definition of a selbri. (the selbri combined with the sumti make up a bridi).

Synonyms of arity

Forms of arity

pluralarities

Origin of arity

From -ary (taken from unary/binary/ternary [function/operator]) + -ity. Compare adicity and adinity.

Words that rhyme with arity

4 more rhymesFewer rhymes

Questions about arity

What does arity mean?
Arity means the number of arguments or operands a function or operation takes. For a relation, the number of domains in the corresponding Cartesian product.
What part of speech is arity?
Arity is a noun.
How do you pronounce arity?
Arity is pronounced /ˈæɹɪti/.
What is the plural of arity?
The plural of arity is arities.

Words near arity in the dictionary

  1. arithmosophy
  2. arithomancy
  3. arities
  4. aritox
  5. Aritra
  6. arity
  7. Arius
  8. Arivaipa
  9. Arivaipas
  10. arixeniid
  11. arixeniids

Source and license

Adapted from Wiktionary: arity (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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