When

/ʍɛn/ adv, conj, intj, noun, pron, slang

adv, conj, intj, noun, pron, slang ·Common ·High school level

Meaning at a glance

  • Primary sense: The time at which something happens.
  • Grammar: when is listed as adv, conj, intj, noun, pron, slang.
  • Nearest alternatives: afisr, after all, again, albeit.
  • Useful contrasts: after, before, direct question.
  • Usage evidence: I suppose it's different when you think about it over the long term.

How to use "when"

  1. Start with the primary definition, then check the part of speech before placing the word in a sentence.
  2. Compare nearby synonyms to make sure "when" carries the exact meaning, tone, and strength you need.
  3. Use the example sentence as a context check. If your sentence uses the word differently, confirm that the grammar still fits.

Meaning check

  • Does the word fit the sentence's grammar?
  • Does it match the intended tone rather than only the dictionary definition?
  • Would a simpler synonym be clearer for the reader?
  • Is there enough surrounding context to prevent ambiguity?

Source and review context

This entry combines structured lexical data with WordToolSet review checks. Definitions, examples, synonyms, and usage notes may come from different source tables, so the page is designed to show evidence from more than one angle before you rely on "when" in a final draft.

If a word has several senses, prefer the sense that matches your sentence's grammar and surrounding context. A correct definition can still be the wrong choice when the sentence needs a different register, emphasis, or level of specificity.

Before you rely on this definition

Read the first definition as a starting point, then check the example, synonyms, and part of speech before treating "when" as the right word for your sentence.

If your draft is formal, technical, persuasive, or sensitive, compare "when" with a nearby alternative so the final choice matches both meaning and reader expectation.

Compare nearby meanings

  • Use synonyms when you need a softer, stronger, simpler, or more specific word.
  • Use antonyms to check the boundary of the meaning and avoid accidental contrast.
  • Use the example sentence to confirm the word behaves naturally in context.
  • Keep the original wording when a replacement adds complexity without improving precision.

Definition decision workflow

1. Identify the role

Check whether "when" is acting as adv, conj, intj, noun, pron, slang in your sentence. A definition is only useful when the grammar matches the way the word is being used.

2. Test the nearest option

Compare it with "afisr" and other nearby choices to see whether the sentence needs a softer, stronger, or more familiar word.

3. Confirm with context

Use the example sentence below as an evidence check, then read your own sentence out loud to catch tone or rhythm problems.

Review note: Definition pages are checked for source coverage, sentence evidence, synonym support, and editorial insight before they are treated as approval-ready pages. If the evidence is too thin, the page remains available to users but is kept out of the approval-facing indexed inventory.

Final meaning check

Before publishing a sentence with "when", ask whether the word helps the reader understand the idea faster. A precise word should reduce confusion, not simply make the sentence look more polished.

When the definition, synonym evidence, and example context point in the same direction, the word is usually a safer choice. When they conflict, revise the sentence or choose a clearer alternative.

Definitions

Noun
  1. 1
    The time at which something happens.

    "A good article will cover the who, the what, the when, the where, the why and the how."

Adverb
  1. 1
    At what time? At which time? Upon which occasion or circumstance? Used to introduce direct or indirect questions about time. interrogative, not-comparable

    "When will they arrive?"

  2. 2
    At what time? At which time? Upon which occasion or circumstance? Used to introduce direct or indirect questions about time.; Used after a noun or noun phrase in isolation to express impatience with an anticipated future event. Internet, humorous, interrogative, not-comparable, often

    "The site's all bugged. Fix when?"

  3. 3
    At an earlier time and under different, usually less favorable, circumstances. not-comparable

    "He's mister high and mighty now, but I remember him when."

  4. 4
    At which, on which, during which: often omitted or replaced with that. not-comparable, relative

    "That was the day when the Twin Towers fell."

  5. 5
    The time at, on or during which. not-comparable

    "I recall when they were called the Greys."

Show 1 more definition
  1. 6
    A circumstance or situation in which. informal, not-comparable

    "Love is when you can't get enough of someone."

Conjunction
  1. 1
    At (or as soon as) that time that; at the (or any and every) time that; if.

    "Pavlov's dogs salivate when [i.e. at any and every time that] they hear a bell."

  2. 2
    During the time that; at the time of the action of the following clause or participle phrase.

    "They dream when [i.e. during the time that] they sleep."

  3. 3
    At what time; at which time.

    "I am here till Friday, when [i.e. at which time] I leave for Senegal."

  4. 4
    Since; given the fact that; considering that.

    "I don't see the point of putting up Christmas decorations when I am the only person who is going to see them."

  5. 5
    Whereas; although; at the same time as; in spite of the fact that.

    "You're picking at your scabs when you should be letting them heal."

Pronoun
  1. 1
    What time; which time. interrogative

    "Since when do I need your permission?"

Intj
  1. 1
    That's enough: a command asking someone to stop adding something, especially an ingredient or portion of food or drink; used in, or as if in, literal response to 'Say when'. humorous, often

    "HOCKEN: Say “when”, Frank. / DREBIN: Whe—"

  2. 2
    Expressing impatience. obsolete

    "Why when I ſay?[…]Off with my boots, you rogues: you villaines, when?[…]Out you rogue[…]"

Synonyms

All synonyms
afisrafter allagainalbeitall the samealthough

Antonyms

afterbeforedirect question

Example

"I suppose it's different when you think about it over the long term."

Common questions

What does "when" mean?

The time at which something happens.

What is a synonym for "when"?

Common synonyms include: afisr, after all, again, albeit, all the same, although.

How do you use "when" in a sentence?

I suppose it's different when you think about it over the long term.

How do you pronounce "when"?

Pronounced /ʍɛn/.

Etymology

From Middle English when(ne), whan(ne), from Old English hwonne, from Proto-West Germanic *hwannē, from Proto-West Germanic *hwan, from Proto-Germanic *hwan (“at what time, when”), from Proto-Indo-European *kʷís (interrogative base). Cognate with Scots whan (“when”), Dutch wanneer (“when”), wan (“when”) and wen (“when, if”), Low German wannehr (“when”), wann (“when”) and wenn (“if, when”), German wann (“when”) and wenn (“when, if”), Gothic 𐍈𐌰𐌽 (ƕan, “when, how”), Latin quandō (“when”). More at who. Interjection sense: a playful misunderstanding of "say when" (i.e. say something / speak up when you want me to stop) as "say [the word] when".

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