octal

English

Etymology

From oct- +‎ -al.

Pronunciation

• (UK) IPA^(key): /ˈɒk.təl/

• Audio (US):

  (file)

Noun

octal (countable and uncountable, plural octals) (abbreviated oct)

1. (arithmetic, computing, uncountable) The number system that uses the eight digits 0, 1, 2, 3, 4, 5, 6, 7.
2. (arithmetic, computing, countable) A digit or value in the octal number system.

Synonyms

• (system): base 8, octonary (not used in computing)

Adjective

octal (not comparable)

1. (arithmetic, computing) Concerning numbers expressed in octal or mathematical calculations performed using octal.

Synonyms

• base-8

Derived terms

• octal data rate

Translations

concerning numbers expressed in octal or mathematics calculations performed using octal

• Armenian: please add this translation if you can
• Chinese:

  Mandarin: 八進制 / 八进制 (zh) (bājìnzhì)

• Czech: osmičkový (cs)
• Danish: please add this translation if you can
• Esperanto: okuma (eo)
• Estonian: please add this translation if you can
• Finnish: oktaalinen
• Georgian: please add this translation if you can
• German: Oktal-, Achter- (de), oktal (de)
• Greek: οκταδικός (el) m (oktadikós)
• Hindi: अष्टाधारी (aṣṭādhārī)
• Hungarian: oktális, nyolcas (hu)
• Italian: ottale (it)
• Polish: ósemkowy (pl) m
• Romanian: octal (ro)
• Russian: восьмери́чный (ru) (vosʹmeríčnyj)
• Thai: อัฐนิยม
• Turkish: sekizli (tr)

See also

• base
• binary
• decimal
• hexadecimal

Anagrams

• actol, lacto-, tlaco

Catalan

Pronunciation

• IPA^(key): (Central) [ukˈtal]
• IPA^(key): (Balearic, Valencia) [okˈtal]
• Rhymes: -al

Adjective

octal m or f (masculine and feminine plural octals)

1. octal

Noun

octal m (plural octals)

1. octal

Further reading

• “octal”, in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana, 2025.
• “octal” in Diccionari normatiu valencià, Acadèmia Valenciana de la Llengua.

French

Pronunciation

• IPA^(key): /ɔk.tal/

Adjective

octal (feminine octale, masculine plural octaux, feminine plural octales)

1. octal

Further reading

• “octal”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

Portuguese

Pronunciation

• (Brazil) IPA^(key): /okˈtaw/ [okˈtaʊ̯]

 

• (Portugal) IPA^(key): /ɔˈktal/ [ɔˈktaɫ]

• (Portugal) IPA^(key): /ɔˈktal/ [ɔˈktaɫ]
  • (Southern Portugal) IPA^(key): /ɔˈkta.li/

• Rhymes: (Portugal) -al, (Brazil) -aw
• Hyphenation: oc‧tal

Adjective

octal m or f (plural octais)

1. octal

Romanian

Etymology

Borrowed from French octale.

Pronunciation

• IPA^(key): /okˈtal/

Adjective

octal m or n (feminine singular octală, masculine plural octali, feminine and neuter plural octale)

1. octal

Declension

Declension of octal

		singular				plural
		masculine	neuter	feminine		masculine	neuter	feminine
nominative- accusative	indefinite	octal		octală		octali	octale
	definite	octalul		octala		octalii	octalele
genitive- dative	indefinite	octal		octale		octali	octale
	definite	octalului		octalei		octalilor	octalelor

Further reading

• “octal”, in DEX online—Dicționare ale limbii române (Dictionaries of the Romanian language) (in Romanian), 2004–2025

Spanish

Pronunciation

• IPA^(key): /oɡˈtal/ [oɣ̞ˈt̪al]
• Rhymes: -al
• Syllabification: oc‧tal

Adjective

octal m or f (masculine and feminine plural octales)

1. octal

Further reading

• “octal”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8, Royal Spanish Academy [Spanish: Real Academia Española], 2024 December 10