thin

verb [I or T] (FEWER)

/θɪn/ (-nn-) (also thin out)

Definition

› When a crowd or a group thins (out), it becomes fewer in number, and when you thin (out) a group of plants or other things, you remove some to make them fewer: The traffic will thin out after the rush hour.Becoming and making smaller or lessBecoming and making less strong

(Definition of thin verb (FEWER) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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