signature

(noun) your name written in your own handwriting.

(noun) a distinguishing style. Synonyms: touch. Example: "This room needs a woman's touch."

(noun) a melody used to identify a performer or a dance band or radio/tv program. Synonyms: signature tune, theme song.

(noun) the sharps or flats that follow the clef and indicate the key. Synonyms: key signature.

(noun) a sheet with several pages printed on it; it folds to page size and is bound with other signatures to form a book.