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22 entries under once topic. ×

1
at one time(expression, idiom, hitherto, sometime)
1
away back(expression, adverb, hitherto, sometime)
1
back when(expression, adverb, ago, sometime)
1
but once(expression, hitherto, sometime, erewhile)
1
in the old days(expression, idiom, adverb, sometime)
1
in the olden days(expression, idiom, hitherto, sometime)
1
in times gone by(expression, idiom, hitherto, sometime)
1
in times past(expression, idiom, hitherto, sometime)
1
long ago(expression, adverb, hitherto, sometime)
1
on occasion(expression, adverb, hitherto, sometime)
1
on one occasion(expression, idiom, adverb, sometime)
1
once only(expression, hitherto, sometime, erewhile)
1
once upon a time(expression, idiom, adverb, sometime)
1
one time before(expression, idiom, hitherto, sometime)
1
one time previously(expression, idiom, adverb, sometime)
1
only one time(expression, idiom, hitherto, sometime)
1
single time(expression, hitherto, sometime, erewhile)
1
this time(expression, adverb, hitherto, sometime)
1
time was(expression, adverb, ago, sometime)
1
whilom(adverb, hitherto, sometime, erewhile)
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APASmart Define. (2011). in old days thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/in_old_days/thesaurus/synonyms
ChicagoSmart Define. 2011. "in old days thesaurus" https://smartdefine.org/in_old_days/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2011, in old days thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/in_old_days/thesaurus/synonyms>.
MLASmart Define. "in old days thesaurus" 19 May 2011. Web. 29 September 2026. <https://smartdefine.org/in_old_days/thesaurus/synonyms>