arity

A1R1I1T1Y4
/ˈæɹɪti//ˈeəɹɪti/

noun

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

Similar
adinityadicitytyperank
UncommonScrabble 8
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Meanings

nounarity (countable and uncountable, plural arities)

plural arities

  1. countableuncountablecomputerThe number of arguments or operands a function or operation takes. For a relation, the number of domains in the corresponding Cartesian product.
  2. countableuncountablecomputerThe maximum number of child nodes that any node in a given tree (data structure) may have.
  3. Lojbancountableuncountablegrammarthe 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 & antonyms

Similar
adinityadicitytyperank
Also see
adicityadinity

Origin

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

Full word history & related roots →

Translations

Chinese Mandarin 元数
  • 元数 (yuánshù)number of arguments
Czech arita, četnost
  • aritanumber of arguments
  • četnostnumber of arguments
Danish aritet
  • aritetnumber of arguments
Dutch ariteit, plaatsigheid
  • ariteitnumber of arguments
  • plaatsigheidnumber of arguments
Esperanto loknombro, kapacito de operacio
  • loknombronumber of arguments
  • kapacito de operacionumber of arguments
Finnish paikkaluku, muuttujamäärä
  • paikkalukunumber of arguments
  • muuttujamääränumber of arguments
  • argumenttien lukumääränumber of arguments
  • argumenttimääränumber of arguments
French arité
  • ariténumber of arguments
German Stelligkeit
  • Stelligkeitnumber of arguments
Greek βαθμός, τάξη
  • βαθμός (vathmós)number of arguments
  • τάξη (táxi)number of arguments
Icelandic stæðafjöldi
  • stæðafjöldinumber of arguments
Irish nárthacht
  • nárthachtnumber of arguments
Norwegian Bokmål aritet
  • aritetnumber of arguments
Polish argumentowość
  • argumentowośćnumber of arguments
Portuguese aridade
  • aridadenumber of arguments
Russian а́рность, число́ опера́ндов
  • а́рность (árnostʹ)number of arguments
  • число́ опера́ндов (čisló operándov)number of arguments
  • число́ аргуме́нтов (čisló arguméntov)number of arguments
Spanish aridad
  • aridadnumber of arguments
Swedish ställighet, aritet
  • ställighetnumber of arguments
  • aritetnumber of arguments

Rhymes & wordplay

Rhymes with arity

claritysimilarityparityfamiliaritypolaritylinearitynonlinearityhilaritypeculiarityparticularityosmolarityinsularitymolaritycollinearityimparitymultifaritytutelarity
All rhymes →

Anagrams

yatri
Cite this entry
APA

arity. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/arity

MLA

“arity.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/arity. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “arity,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/arity.

Source: arity on Wiktionary, CC BY-SA 4.0.