88 entries under adverb topic. ×
| in the past(verb, expression, idiom, phrasal verb) | |
| occasionally(expression, time, moment, period) | |
| on one occasion(expression, adjective, idiom, past) | |
| whilom(adjective, past, precede) | |
| after(conjunction, immediately, when) | |
| bygone(adjective, last, original, late) | |
| ever | |
| hitherto | |
| time | |
| time was(expression, adjective, late, old) | |
| back(adjective, late, past, earlier) | |
| erst | |
| on occasion(expression, time, moment, period) | |
| one(adjective, past, then, previously) | |
| previous(adjective, last, late, old) | |
| some time ago(expression, idiom, late, earlier) | |
| then | |
| ages ago(expression, adjective, late, old) | |
| in times past(expression, adjective, idiom, past) | |
| simultaneously |
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| APA | Smart Define. (2016). once thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/once/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "once thesaurus" https://smartdefine.org/once/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, once thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/once/thesaurus/synonyms>. |
| MLA | Smart Define. "once thesaurus" 30 March 2016. Web. 26 September 2026. <https://smartdefine.org/once/thesaurus/synonyms> |