Long time ago
Once and long time ago are semantically related. In some cases you can use "Once" instead an adverb phrase "Long time ago".
Once
Once adverb - At an earlier or previous time.
Long time ago and once are semantically related. You can use "Long time ago" instead an adverb "Once".
Mutual synonyms
Related pairs
Both terms in one sentence
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I was in a similar situation once before, a long time ago, with a genie and a giant pig...
Source: Duels Decide Everything - In "Sonic Rainboom", Rainbow Dash mentions that she's broken the rainbow barrier once before, "a long time ago".
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Once Upon a Time: "...a very long time ago, about last Friday, Winnie-the-Pooh lived in a forest all by himself under the name of Sanders." Paper-Thin Disguise: Pooh, pretending to be a cloud.
Source: Literature / Winnie-the-Pooh
Cite this Source
Once and Long time ago. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/long_time_ago/once
Long time ago & Once. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/long_time_ago/once>.
Once or Long time ago. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/long_time_ago/once.
