Phrase guide

know one's stuff

verb · 1 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

verb

Meaning 1

To be knowledgeable about and competent at a particular subject or task.

Definition source: English Wiktionary via Wiktextract

Usage: informal, intransitive

Examples

  • Joe really knows his stuff when it comes to baseball.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

No etymology was provided for this word.

Across languages

Translations

14 source translations are retained for this English entry.

  • Danish: kende sin vej rundt — be generally experienced and knowledgeable
  • German: auskennen — be generally experienced and knowledgeable
  • German: gut Bescheid wissen — be generally experienced and knowledgeable
  • German: Ahnung haben — be generally experienced and knowledgeable
  • Polish: znać się na czymś — be generally experienced and knowledgeable
  • Turkish: avucunun içi gibi bilmek — be generally experienced and knowledgeable
  • Danish: kunne sit kram — knowledgeable in a particular field
  • Danish: være velindsat — knowledgeable in a particular field
  • Finnish: osata hommansa — knowledgeable in a particular field
  • French: toucher sa bille — knowledgeable in a particular field
  • German: sich gut auskennen — knowledgeable in a particular field
  • German: gut Bescheid wissen — knowledgeable in a particular field
  • Italian: sapere il fatto proprio — knowledgeable in a particular field
  • Polish: znać się na rzeczy — knowledgeable in a particular field