We use when as a conjunction meaning ‘at the time that’. The clause with when is a subordinate clause (sc) and needs a main clause (mc) to complete its meaning. Nglish: Translation of when for Spanish Speakers. Love words? Need even more definitions? Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Definition of when adverb in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
When is acceptable, however, when a noun phrase that denotes a point in time is being defined or described: The best time to drink this tea is when you are sleepy. American Heritage® Dictionary of . When should not be used loosely as a substitute for in which after a noun which does not refer to a period of time: paralysis is a condition in which (not when ) parts of the body cannot be moved. Learn about time adverbials like at seven o'clock, in 1998, last Saturday and in five minutes and do the exercises to practise using them.
English dictionary and integrated thesaurus for learners, writers, teachers, and students with advanced, intermediate, and beginner levels. Feb 22, 2026 · 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 will they arrive? (used to introduce a question) under what circumstances?: When is an apology in order? at what time: He knows when to be silent. at the time that: when we were young. whenever: .
Tomorrow is when we must decide. He retired in 1998, since when he has been devoting his time to gardening. You need the report by when? since when?
- WHEN | definition in the Cambridge English Dictionary.
- When - definition of when by The Free Dictionary.
- When - Wiktionary, the free dictionary.
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