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English definition of “only”

only

adverb     /ˈəʊn.li/ US  /ˈoʊn-/
not only ... (but) also B2 used to say that two related things are true or happened, especially when this is surprising or shocking: Not only did he turn up late, he also forgot his books. If this project fails it will affect not only our department, but also the whole organization.Also, extra, and in addition have only (got) to If you say you have only (got) to do something, you mean that it is all you need to do in order to achieve something else: If you want any help, you have only to ask. You've only got to look at her face to see that she's not well.Succeeding, achieving and fulfilling Grammar:Not only … but alsoWe use not only X but also Y in formal contexts:See more
(Definition of only adverb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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