while is on the Basic English 850 List.
where - while - whip
while is one of the 1000 most common headwords.
which - while - white

Pronunciation change

Preposition change

Preposition
while

  1. If   happens while   happens, they happen at the same time.
    He fell asleep while sitting at his desk.

Noun change

Singular
while

Plural
none

  1. A while is a short time.
    After a while I will stop working and cook food for us.

Verb change

Plain form
while

Third-person singular
whiles

Past tense
whiled

Past participle
whiled

Present participle
whiling

  1. To pass time.
    On Sundays, I like to while away the time by reading.