88 entries under expression topic. ×
| at one time(adjective, idiom, adverb, late) | |
| as soon as(conjunction, verb, phrasal verb, noun) | |
| sometime(adjective, adverb, time, moment) | |
| long ago(adjective, idiom, adverb, time) | |
| one time(idiom, adverb, frequency) | |
| sometimes(adverb, time, moment, period) | |
| at times(idiom, adverb, time, moment) | |
| in the past(verb, idiom, adverb, phrasal verb) | |
| occasionally(adverb, time, moment, period) | |
| on one occasion(adjective, idiom, adverb, past) | |
| time was(adjective, adverb, late, old) | |
| now and again(idiom, time, moment, rare) | |
| on occasion(adverb, time, moment, period) | |
| some time ago(idiom, adverb, late, earlier) | |
| ages ago(adjective, adverb, late, old) | |
| at once | |
| in times past(adjective, idiom, adverb, past) | |
| now and then(time, moment, rare, frequency) | |
| one day(idiom, time) | |
| one fine morning(idiom, time) |
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| APA | Smart Define. (2016). once thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/once/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "once thesaurus" https://smartdefine.org/once/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, once thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/once/thesaurus/synonyms>. |
| MLA | Smart Define. "once thesaurus" 30 March 2016. Web. 21 September 2026. <https://smartdefine.org/once/thesaurus/synonyms> |