send me a sign - send me a signal/communicate without speaking, to sign (verb) - to write your name, a signature (noun) - an official name, a sign (noun) - A picture that explains, to sing - create music with your voice, all - everyone, everything, old - advanced age, to wait (verb) - ______ in line. , weight - a measure of how heavy an object is, label - words to explain what you see.,

Physics - "sign"

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