Prior to and While ago

Prior to

Prior to preposition - Earlier than.

While ago and prior to are semantically related. In some cases you can use "While ago" instead an adverb phrase "Prior to".

While ago

Definitions of Prior to not found.

Prior to and while ago are semantically related. Sometimes you can use "Prior to" instead an adverb phrase "While ago".
Cite this Source
While ago and Prior to. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/prior_to/while_ago
Prior to & While ago. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/prior_to/while_ago>.
While ago or Prior to. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/prior_to/while_ago.
Google Ngram Viewer shows how "prior to" and "while ago" have occurred on timeline