88 entries under adverb topic. ×

1
in former times(expression, idiom, earlier, then)
1
in olden days(expression, idiom)
1
in one case(expression, idiom)
1
in the old days(expression, adjective, idiom, past)
1
in the olden days(expression, adjective, idiom, late)
1
in time past
1
in times gone by(expression, adjective, idiom, past)
1
once upon a time(expression, adjective, idiom, late)
1
one time before(expression, adjective, idiom, past)
1
one time previously(expression, adjective, idiom, past)
1
only one time(expression, adjective, idiom, past)
1
radically(earlier, then, before, erstwhile)
1
supposing
1
this time(expression, adjective, past, then)
1
used to be(expression, idiom, earlier, then)
1
water under the bridge(expression, idiom, earlier, then)
0
a long time ago
0
a single time(adjective, past)
0
aeons ago
0
antecedently
10 years ago|8.8k views|share |citing 
APASmart Define. (2016). once thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/once/thesaurus/synonyms
ChicagoSmart Define. 2016. "once thesaurus" https://smartdefine.org/once/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, once thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/once/thesaurus/synonyms>.
MLASmart Define. "once thesaurus" 30 March 2016. Web. 27 September 2026. <https://smartdefine.org/once/thesaurus/synonyms>