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English definition of “decline”

decline

verb uk   /dɪˈklaɪn/ us  

decline verb (GO DOWN)

B2 [I] to gradually become less, worse, or lower: His interest in the project declined after his wife died. The party's popularity has declined in the opinion polls.formal The land declines sharply away from the house.

decline verb (REFUSE)

B2 [I or T] formal to refuse: I invited him to the meeting but he declined. He declined my offer. [+ to infinitive] They declined to tell me how they had got my address.

decline verb (GRAMMAR)

[I or T] specialized language If a noun, pronoun, or adjective declines, it has different forms to show if it is the subject or object, etc. of a verb or if it is singular or plural, etc. If you decline such a word, you list its various forms: In Latin we learned how to decline nouns.

decline

noun [S or U] uk   /dɪˈklaɪn/ us  
B2 when something becomes less in amount, importance, quality, or strength: industrial decline Home cooking seems to be on the/in decline (= not so many people are doing it). a decline in the number of unemployed She seemed to be recovering and then she went into a decline.
(Definition of decline from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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