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English definition of “obsess”

obsess

verb [I or T] uk   /əbˈses/ us  
If something or someone obsesses you, or if you obsess about something or someone, you think about it or them all the time: The whole relationship obsessed me for years. She used to obsess about her weight.Continually thinking about
(Definition of obsess from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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