Once and While ago

Once

Once adverb - At an earlier or previous time.

While ago and once are semantically related In some cases you can use "While ago" instead an adverb "Once".

While ago

Definitions of Once not found.

Once and while ago are semantically related in earlier topic. You can use "Once" instead an adverb phrase "While ago".

Both terms in one sentence

Cite this Source
While ago and Once. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/once/while_ago
Once & While ago. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/once/while_ago>.
While ago or Once. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/once/while_ago.
Google Ngram Viewer shows how "once" and "while ago" have occurred on timeline