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A '''sign''' is a [[token]] or [[indication]] of something. It may be an [[action]], [[event]], [[object]] or [[pattern]] that conveys a [[meaning]] or a notice containing an [[advertisement]], [[bearing]], [[direction]] or [[warning]] that is in public view; e.g. road signs.

A '''sign''' is a token or indication of something. It may be an [[action]], [[event]], [[object]] or [[pattern]] that conveys a [[meaning]] or a notice containing an [[advertisement]], [[bearing]], [[direction]] or [[warning]] that is in public view; e.g. road signs.

Sign may also refer to the [[evidence]] of [[existence]]; as in "he showed signs of [[life]]" or "there was no sign of them anywhere".

Sign may also refer to the [[evidence]] of existence; as in "he showed signs of [[life]]" or "there was no sign of them anywhere".

In [[mathematics]], signs can refer to the [[symbol]]s of [[addition]], [[subraction]], [[multiplication]] and [[division]] as well as some more advanced operations. The sign of a [[number]] refers to whether it is [[positive]] or [[negative]].

In [[mathematics]], signs can refer to the [[symbol]]s of [[addition]], [[subtraction]], [[multiplication]] and [[division]] as well as some more advanced operations. The sign of a [[number]] refers to whether it is [[positive]] or [[negative]].

A sign may be a meaningful gesture as in [[sign language]] or to indicate approval (a "thumbs-up sign"), disapproval or some other emotion.

A sign may be a meaningful gesture as in [[sign language]] or to indicate approval (a "thumbs-up sign"), disapproval or some other emotion.