Back when and Prior to

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Definitions of Back when not found.

Prior to and back when are semantically related. In some cases you can use "Prior to" instead an adverb phrase "Back when".

Prior to preposition - Earlier than.

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Back when and prior to are semantically related. Sometimes you can use "Back when" instead an adverb phrase "Prior to".

Oh, and Elizabeth II (back when she was a high ranking Keeper prior to becoming Queen of England) spearheaded the operation.

Source: Fanfic / Celestial Warrior Moon
Prior to that, in Harry Potter and the Goblet of Fire, Barty Crouch mentioned that his grandfather owned a flying carpet that seated twelve back when it was legal.

Source: Magic Carpet
Lucy, the primary character of the series (when she's not in her cute and harmless "Nyuu" mode, or back when she was just Kaede prior to becoming a genocidal lunatic) is one of the most frightening characters you will ever meet.

Source: Ax Crazy / Anime and Manga

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Prior to and Back when. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/back_when/prior_to

Back when & Prior to. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/back_when/prior_to>.

Prior to or Back when. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/back_when/prior_to.

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