Once
Once adverb - At an earlier or previous time.
Used to be and once are semantically related In some cases you can use "Used to be" instead an adverb "Once".
Used to be
Once and used to be are semantically related in previously in time or order topic. Sometimes you can use "Once" instead an adverb phrase "Used to be".
Mutual synonyms
Related pairs
Both terms in one sentence
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Fingerprint scanners are becoming common, and the idea of someone watching six channels at once isn't as ridiculous as it used to be, except that it would be on a computer screen instead of a TV.
Source: I Want My Jet Pack - Glory Days: Benihime reminsces over how much stronger Urahara, Yoruichi and Tessai used to be before remaining idle for a century.But once upon a time, Ichigo, we were magnificent.
Source: Fan Fic / Sight - Trafalgar Law from One Piece used to be this as a child, and once was told that he'd be dead before he turned 13.
Source: Ill Girl / Anime and Manga
Cite this Source
Used to be and Once. (2016). Retrieved 2026, July 29, from https://thesaurus.plus/related/once/used_to_be
Once & Used to be. N.p., 2016. Web. 29 Jul. 2026. <https://thesaurus.plus/related/once/used_to_be>.
Used to be or Once. 2016. Accessed July 29, 2026. https://thesaurus.plus/related/once/used_to_be.
