Once

Posted by Manjusha Filed in Practical English Usage

Once means on one occasion.

Once can also mean at some time in the past.

Note that to refer to an indefinite time in the future, we use sometime or one day, not once.

As a conjunction

Once can be used as a conjunction meaning after, as soon as. It is most often used with a perfect tense.

See also

Of course
Often
Once
One
On time and in time
Otherwise
Ought to have + past participle
Overlook and look over: difference
Owing to, due to, because of and on account of

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