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English definition of “thin”

thin

verb [I/T] (BECOME FEWER)   /θɪn/ (-nn-)
to become fewer in number, or to make a group of things fewer in number: [I] Traffic thins out after seven o’clock. [T] An improving economy helped thin unemployment lines.
(Definition of thin verb (BECOME FEWER) from the Cambridge Academic Content Dictionary © Cambridge University Press)
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