Standard Lemma guide

ounce

noun · 11 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /aʊns/
  • rhymes with -aʊns
  • UK: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: AW1 N S Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

An avoirdupois ounce, weighing 1⁄16 of an avoirdupois pound, or 28.349523125 grams.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A troy ounce, weighing 1⁄12 of a troy pound, or 480 grains, or 31.1034768 grams.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

A US fluid ounce, with a volume of 1⁄16 of a US pint, 1.804688 cubic inches or 29.5735295625 millilitres.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

A British imperial fluid ounce, with a volume of 1⁄20 of an imperial pint, 1.733871 cubic inches or 28.4130625 millilitres.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

Any small amount, a little bit.

Definition source: English Wiktionary via Wiktextract

Usage: figuratively

Examples

  • He didn't feel even an ounce of regret for his actions.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

A large wild feline, such as a lynx or cougar.

Definition source: English Wiktionary via Wiktextract

Usage: archaic

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

noun

Meaning 7

Synonym of snow leopard, Panthera uncia.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: snow leopard, Panthera uncia

Antonyms: none provided

8

noun

Meaning 8

Synonym of onza, a particularly aggressive cougar or jaguarundi in Mexican folklore.

Definition source: English Wiktionary via Wiktextract

Topics: biology, cryptozoology, natural-sciences, zoology

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: onza

Antonyms: none provided

9

noun

Meaning 9

large feline of upland central Asia having long thick whitish fur

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: snow leopard, Panthera uncia

Antonyms: none provided

Broader terms: big cat, cat

10

noun

Meaning 10

a unit of weight equal to one sixteenth of a pound or 16 drams or 28.349 grams

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: oz.

Antonyms: none provided

Broader terms: avoirdupois unit

11

noun

Meaning 11

a unit of apothecary weight equal to 480 grains or one twelfth of a pound

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: troy ounce, apothecaries' ounce

Antonyms: none provided

Broader terms: troy unit, apothecaries' unit, apothecaries' weight

History

Etymology

From Middle English ounce, unce, from Middle French once, from Latin uncia (“Roman ounce, various similar units”), ultimately from Proto-Indo-European *óynos (“one”). Doublet of a, one, inch, uncia, onça, onza, oka, ouguiya, and awqiyyah.

From Middle French once, from Old French lonce (“lynx”), by false division (the l was thought to be the article), from Italian lonza, ultimately from Ancient Greek λύγξ (lúnx, “lynx”). Doublet of onza and lynx.

Across languages

Translations

81 source translations are retained for this English entry.

  • Albanian: ons — 28.3495 g
  • Arabic: أُوقِيَّة (ʔūqiyya) — 28.3495 g
  • Arabic: وِقِيَّة (wiqiyya) — 28.3495 g
  • Arabic: أَوْنْس (ʔawns) — 28.3495 g
  • Arabic: أونصة (ʔunṣa) — 28.3495 g
  • Arabic: أونسة (ʔunsa) — 28.3495 g
  • Aramaic: ܐܘܢܩܝܐ (ʾūnqīyā) — 28.3495 g
  • Armenian: ունցիա (uncʻia) — 28.3495 g
  • Armenian: ունկի (unki) — 28.3495 g
  • Bengali: আউন্স (aunśo) — 28.3495 g
  • Bulgarian: унция (uncija) — 28.3495 g
  • Catalan: unça — 28.3495 g
  • Chinese Cantonese: 安士 — 28.3495 g
  • Chinese Mandarin: 盎司 (àngsī) — 28.3495 g
  • Czech: unce — 28.3495 g
  • Esperanto: unco — 28.3495 g
  • Faroese: unsa — 28.3495 g
  • Finnish: unssi — 28.3495 g
  • French: once — 28.3495 g
  • Friulian: once — 28.3495 g
  • Galician: onza — 28.3495 g
  • Ge'ez: ወቄት (wäḳet) — 28.3495 g
  • German: Unze — 28.3495 g
  • Greek: ουγγιά (oungiá) — 28.3495 g
  • Hebrew: אוּנְקִיָה (unqiyá) — 28.3495 g
  • Hindi: औंस (auns) — 28.3495 g
  • Hungarian: uncia — 28.3495 g
  • Icelandic: únsa — 28.3495 g
  • Indonesian: ons — 28.3495 g
  • Irish: unsa — 28.3495 g
  • Irish: uinge — 28.3495 g
  • Old Irish: ungae — 28.3495 g
  • Italian: oncia — 28.3495 g
  • Japanese: オンス (onsu) — 28.3495 g
  • Khmer: អោនស៍ (ʼaon) — 28.3495 g
  • Korean: 온스 (onseu) — 28.3495 g
  • Northern Kurdish: weqî — 28.3495 g
  • Northern Kurdish: ons — 28.3495 g
  • Latin: uncia — 28.3495 g
  • Latvian: unce — 28.3495 g
  • Lithuanian: uncija — 28.3495 g
  • Malay: auns — 28.3495 g
  • Maltese: uqija — 28.3495 g
  • Māori: aunihi — 28.3495 g
  • Middle English: ounce — 28.3495 g
  • Mongolian: унци (unci) — 28.3495 g
  • Norman: onche — 28.3495 g
  • Occitan: onça — 28.3495 g
  • Polish: uncja — 28.3495 g
  • Portuguese: onça — 28.3495 g
  • Romanian: uncie — 28.3495 g
  • Romansh: onza — 28.3495 g
  • Romansh: untscha — 28.3495 g
  • Romansh: unza — 28.3495 g
  • Romansh: uonscha — 28.3495 g
  • Russian: у́нция (úncija) — 28.3495 g
  • Scottish Gaelic: unnsa — 28.3495 g
  • Serbo-Croatian: у̑нца — 28.3495 g
  • Serbo-Croatian: ȗnca — 28.3495 g
  • Sicilian: oncia — 28.3495 g
  • Sicilian: uncia — 28.3495 g
  • Slovak: unca — 28.3495 g
  • Slovene: unča — 28.3495 g
  • Spanish: onza — 28.3495 g
  • Swahili: wakia — 28.3495 g
  • Swedish: uns — 28.3495 g
  • Tagalog: onsa — 28.3495 g
  • Thai: ออนซ์ (ɔɔn) — 28.3495 g
  • Turkish: ons — 28.3495 g
  • Uzbek: untsiya — 28.3495 g
  • Venetan: onsa — 28.3495 g
  • Venetan: onza — 28.3495 g
  • Venetan: onzha — 28.3495 g
  • Venetan: onça — 28.3495 g
  • Welsh: owns — 28.3495 g
  • Zulu: iawunsi — 28.3495 g
  • French: once — large wild feline
  • Polish: pantera śnieżna — large wild feline
  • Polish: irbis — large wild feline
  • Polish: irbis śnieżny — large wild feline
  • Spanish: onza — large wild feline
Real reading context

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