while

American  

[hwahyl, wahyl] / ʰwaɪl, waɪl /

noun

1. a period or interval of time.

   to wait a long while;

   He arrived a short while ago.

2. Archaic. a particular time or occasion.

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conjunction

1. during or in the time that.

2. throughout the time that; as long as.

3. even though; although.

   While she appreciated the honor, she could not accept the position.

4. at the same time that (showing an analogous or corresponding action).

   The floor was strewn with books, while magazines covered the tables.

preposition

1. Archaic. until.

verb (used with object)

whiled, whiling

1. to cause (time) to pass, especially in some easy or pleasant manner (usually followed byaway ).

idioms

1. worth one's while, worth one's time, trouble, or expense.

   The art exhibition that opened yesterday isn't worth your while.

2. all the while. all the while.

while British  

/ waɪl /

conjunction

1. (subordinating) at the same time that

   please light the fire while I'm cooking

2. (subordinating) all the time that

   I stay inside while it's raining

3. (subordinating) in spite of the fact that

   while I agree about his brilliance I still think he's rude

4. (coordinating) whereas; and in contrast

   flats are expensive, while houses are cheap

5. (subordinating; used with a gerund) during the activity of

   while walking I often whistle

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preposition

1. dialect another word for until

   you'll have to wait while Monday for these sheets

   you'll never make any progress while you listen to me

noun

1. (usually used in adverbial phrases) a period or interval of time

   once in a long while

2. trouble or time (esp in the phrase worth one's while )

   it's hardly worth your while to begin work today

3. at that time

   he was working the while

while More Idioms  

More idioms and phrases containing while

• a while back
• all the time (while)
• every now and then (once in a while)
• fiddle while Rome burns
• get out while the getting is good
• in a while
• make hay while the sun shines
• once in a while
• quit while you're ahead
• strike while the iron's hot
• worth one's while

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Usage

It was formerly considered incorrect to use while to mean in spite of the fact that or whereas , but these uses have now become acceptable

Etymology

Origin of while

First recorded before 900; Middle English; Old English hwīl; cognate with Dutch wijl, German weile, Old Norse hvīla, Gothic hweila

Example Sentences

Starship is designed to store and transfer fuel while in space, which could allow spacecraft to travel faster than systems that must carry all their fuel from launch.

From Science Daily • Apr. 3, 2026

The companies aim to create platforms that compute and store data in Japan, while allowing clients to access the platforms through Microsoft’s Azure cloud services.

From The Wall Street Journal • Apr. 3, 2026

Of these, about three quarters were actually within the normal weight range, while the remaining quarter met criteria for obesity.

From Science Daily • Apr. 3, 2026

City could really do with getting Erling Haaland firing again, while this is Liverpool's first game since Mohamed Salah announced he will be leaving at the end of the season.

From BBC • Apr. 2, 2026

“Hanging out with the cook guy or anyone else we work with? Voluntarily listening to bad music while swatting at black flies?”

From "Legendary Frybread Drive-In" by Cynthia Leitich Smith

Related Words

• bit
• moment
• period
• time