Definition of once
(Entry 1 of 4)
1 : one time and no more
rode a horse only once went skydiving once
2 : at any one time : under any circumstances : ever didn't once thank me
3 : at some indefinite time in the past : formerly was once a booming mining town
4 : by one degree of relationship
first cousin once removed
once and for all once in a while
1 : with finality : definitively The team proved once and for all that they are the best.
2 : for the last time
I'm telling you once and for all that I'm not going.
: now and then spent most of their time at home, but went out once in a while
once
nounDefinition of once (Entry 2 of 4)
: one single time : one time at least
Please be on time this once.
at once
once
adjectiveDefinition of once (Entry 3 of 4)
: that once was : former a once successful actor
once
conjunctionDefinition of once (Entry 4 of 4)
: at the moment when : as soon as Once she spoke, I recognized her.
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Time Traveler for once
The first known use of once was in the 12th century
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