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adv A1 Beginner Very common

when

WEHN

When (adv) means used to ask or refer to a point in time. Example: “When does the movie start?”

adv
1
Used to ask or refer to a point in time.
"When does the movie start?"
"I don't know when she'll arrive."
conj
1
At the time that; as soon as.
"Call me when you get home."
2
Considering that; given that.
"Why buy a new one when this still works fine?"
intj
1
Used to tell someone to stop pouring or adding something, typically in response to "say when."
"Just say when — I'll keep pouring until you do."

How to use when

Learner’s notes

In plain EnglishThe main word for asking about or referring to time.

Common pairings
when it comes to say when since when

Word forms

whens plural

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Test yourself on “when” A quick quiz — meaning, synonyms & usage

Fill the gap

Can you complete this real example?

_____ does the movie start?

Etymology

From Old English hwonne, from a Proto-Germanic root meaning "at what time" — related to "who" and "what."

Origin: Old English

while as soon as once whenever whilst seeing that

Related words

Rhymes for when

See all rhymes for when →

Frequently asked questions

What does “when” mean?

The word “when” means used to ask or refer to a point in time. In plain terms, the main word for asking about or referring to time.

How do you pronounce “when”?

“When” is pronounced WEHN (/ˈwɛn/ in IPA).

How do you use “when” in a sentence?

Here is “when” used in a sentence: “When does the movie start?”

What is another word for “when”?

Words with a similar meaning to “when” include whilst and seeing that.

What part of speech is “when”?

Depending on how it is used, “when” can be an adverb, a conjunction and an intj.

Where does the word “when” come from?

The word “when” comes from Old English. From Old English hwonne, from a Proto-Germanic root meaning "at what time" — related to "who" and "what.".

Is “when” a common word?

“When” is a very common word in modern English, usually learned at around the A1 level.

How many meanings does “when” have?

“When” has 4 distinct senses listed in this dictionary. The most common is: used to ask or refer to a point in time.

What is the difference between "when" and "while"?

"When" points to a moment or the time at which something happens ("When the bell rang, we left"), while "while" stresses duration and two things happening at the same time ("While we waited, it rained"). With longer background actions, "while" is usually the natural choice.

What tense follows "when" in sentences about the future?

After "when" in a future time clause, English uses the present tense, not "will": "When she arrives, I will call you," not "When she will arrive." The future is expressed only in the main clause.

Do you put a comma before "when"?

If the "when" clause starts the sentence, follow it with a comma: "When it rains, we stay in." If it comes after the main clause, a comma is normally unnecessary: "We stay in when it rains".

What is the difference between "when" and "whenever"?

"When" refers to a particular time, while "whenever" means "every time that" or "at any time that": "Whenever I visit, it rains." "Whenever" also generalises a statement where the exact time is unknown or unimportant.

Example sentences

Real-world examples showing when in context, drawn from published sources. Any opinions expressed are those of the original source and do not reflect the views of FreeDict.com.

Hannah and Max have always split their money equally even when one has earned considerably more than the other.
From BBC · Jul 25, 2026

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