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English definition of “firm”

firm

adjective (HARD)    /fɜːm/ US  /fɝːm/
B2 not soft but not completely hard: I'd rather sleep on a firm mattress than a soft one. These pears are still too firm to eat.Hard and firm
(Definition of firm adjective (HARD) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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