Synonyms and Antonyms of once (wŭns)

already once only back but once quondam this-time one one time before just this once for-the-nonce not more than once a single time one time previously long-ago previously bygone erst earlier now quickly this moment all-at-once at-the-same-time concurrently for at least one time uniquely before erstwhile aforetime beforetime former late old onetime past previous whilom annotinous elapsed erewhile instantaneous momentaneous prompt tout-de-suite omneity oneness unanimity unity one-time in one case at-one-time sometime never-again on one occasion only one time

twice frequently never future

when formerly precede then if whenever only-once until as-long-as as-if unless several-times

cone ₆ once ₆

con ₅ eco ₅ eon ₃ one ₃

en ₂ ne ₂ no ₂ oe ₂ on ₂