- signature [sig′nə chər]n.[LL signatura < L signare: see SIGNATORY]1. a person's name written by that person; also, a representation of this in a mark, stamp, deputy's handwriting, etc.2. the act of signing one's name3. an identifying characteristic or mark4. that part of a doctor's prescription telling the patient how to use the medicine prescribed: usually marked S or Sig.5. THEME SONG (sense 2)6. Musica) KEY SIGNATUREb) TIME SIGNATURE7. Printinga) a large sheet upon which are printed a number of pages in some multiple of four, and which, when folded to page size, forms one section of a bookb) a letter or number at the bottom of the first page in such a sheet showing in what order that section is to be gathered for bindingadj.☆ 1. designating or of a product, as clothing, which is distinguished by a label bearing the stylized signature of its designer2. typical of or identified with a person, place, etc. [an actor's signature mannerism, a restaurant's signature entree]
English World dictionary. V. Neufeldt. 2014.