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English definition of “sign”

sign

noun [C] (BODY MOVEMENT)    /saɪn/
B1 a movement of the body that gives information or an instruction: She pointed to her watch as a sign that it was getting late and she wanted to leave. She made/gave a sign to her husband to stop talking. The priest made the sign of the cross (= made the shape of a cross by moving his hand between four points on his chest) when he entered the church. → See also signal nounGestures and gesturing in general
(Definition of sign noun (BODY MOVEMENT) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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