used for saying that you would like something to happen on this occasion, even though it does not usually happen, and you think it should happen more often
You can pay the bill for once.
It would be nice if, just for once, the two of you could get along with each other.
Synonyms and related words
Wanting or needing something
anxious
impatient
longing
See also main entry: onceSee also main entry: once