(music) A symbol or numerical sign placed on a stave to indicate the meter; in the case of a numerical time signature, the numerator is the number of beats per bar, the denominator represents the value of each beat

an object (especially a ring) formerly used to impress a picture into the sealing wax of a document as a proof of its origin

The act of signifying, or something that is signified; significance. / Evidence for the existence of something. / A meaning of a word.

A traffic light.

a post bearing a sign that gives information on directions / (cryptic crosswords) A word or phrase within a clue that serves as an indicator, rather than being fodder.

(transitive) To install signposts on. / (transitive) To direct (somebody) to services, resources, etc.

Somebody employed to operate the signals and points of a railway. / A member of the armed forces responsible for signalling.

(computer science) The byte of a multibyte number with the greatest importance: that is, the byte stored first on a big-endian system or last on a little-endian system.

(telephony) An audible signal on a voice phone line that sounds more frequently than a standard busy signal, indicating that no transmission path to the called phone number is available.

One who signs something. / One who uses sign language.