1. once - Noun
2. once - Adverb
3. once - Conjunction
By limitation to the number one; for one time; not twice nor any number of times more than one.
At some one period of time; -- used indefinitely.
At any one time; -- often nearly equivalent to ever, if ever, or whenever; as, once kindled, it may not be quenched.
Source: Webster's dictionaryat one time he loved her Source: Internet
her erstwhile writing Source: Internet
she was a dancer once Source: Internet
once I ran into her Source: Internet
once we are home, we can rest Source: Internet
$100 million is, however, pocket change and Kenya is set to earn more than ten times that with plenty left to go around once AfCTA becomes a reality. Source: Internet