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English definition of “sincerely”

sincerely

adverb     /sɪnˈsɪə.li/ US  /-ˈsɪr-/
honestly and without pretending or lying: I'm sincerely grateful.Honesty, openness and sincerity (yours) sincerely B1 (US also Sincerely yours) used to end a formal letter that is sent to a particular personWritten greetingsLetters, notes and cards
(Definition of sincerely adverb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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