Phrase guide

troy ounce

noun · 2 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

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No pronunciation record was provided for this word.

1

noun

Meaning 1

A unit of mass used in the measurement of precious metals, equal to 31.1034768 grams, 480 troy grains, or one twelfth of a troy pound.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: ozt, ozt.

Antonyms: none provided

2

noun

Meaning 2

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: ounce, apothecaries' ounce

Antonyms: none provided

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

History

Etymology

No etymology was provided for this word.

Across languages

Translations

5 source translations are retained for this English entry.

  • Finnish: troy-unssi — historical unit
  • French: once troy — historical unit
  • German: Feinunze — historical unit
  • Russian: тро́йская у́нция (trójskaja úncija) — historical unit
  • Spanish: onza troy — historical unit