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English definition of “armchair”

armchair

noun [C] uk   /ˈɑːm.tʃeər/ us    /ˈɑːrm.tʃer/
A2 a comfortable chair with sides that support your arms: She sat in an armchair by the fire, reading a newspaper.Chairs and seats

armchair

adjective [before noun] uk   /ˈɑːm.tʃeər/ us    /ˈɑːrm.tʃer/
describes a person who knows, or says they know, a lot about a subject without having direct experience of it: an armchair critic/gardener/travellerEnthusiastsAdmirersInexperienced (of people)Naive and trusting
(Definition of armchair from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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