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      once
      noun
      (fandom slang) A fan of the Korean girl band Twice.
      Obsolete form of ounce. [An avoirdupois ounce, weighing ¹⁄₁₆ of an avoirdupois pound, or 28.349523125 grams.]
      adverb
      (frequency) One and only one time.
      (temporal location) Formerly; during some period in the past.
      (mathematics) Multiplied by one: indicating that a number is multiplied by one.
      (chiefly obsolete) At any time; ever.
      (obsolete) One day, someday.
      Synonyms for once
      formerlyadvthenadvsometimeadvwheneverbeforeadverstwhileadjwhilomfinallyadvpreviouslyadvoccasionallyadvearlieradvimmediatelyadv
      Words related to once
      erstadvwhenvwhenasagainadvbeforetimesubsequentlyadvtwiceadvthereafteradvneveradveventuallyadvthenceforwardslateradvuntilafterwardsadvaforetimeawhileadvlastlyadveveradvsincevicennialadjifthenceforthadvwhereuponmomentarilyadvitntheretoforeadvbutadvafteradj

      Synonyms & related words for once

      Find synonyms, related words, and the definition of once — including formerly, then, sometime, whenever, before, erstwhile. Dendril is a free visual thesaurus that shows them on an interactive map where stronger matches sit closer to the center — no signup, no ads.

      Words related to once

      Explore words related to once — words associated with it, words that go with it, and its nearest matches in meaning. Related words include erst, when, whenas, again, beforetime, subsequently, twice, thereafter. Click any word to make it the center of the map and keep exploring the web of connections.

      Synonyms for once

      Common synonyms for once include formerly, then, sometime, whenever, before, erstwhile, whilom, finally — words that share a close meaning. Hover or tap any word on the map for its definition and part of speech.

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