Definitions
1.NounA person's name, written by that person, used as identification or to signify approval of accompanying material, such as a legal contract.
2.NounAn act of signing one's name; an act of producing a signature.
3.NounThe part of a doctor’s prescription containing directions for the patient.
4.NounSigns on the stave indicating key and tempo, composed of the key signature and the time signature.
5.NounA group of four (or a multiple of four) sheets printed such that, when folded, they become a section of a book.
6.NounA pattern used for matching the identity of a virus, the parameter types of a method, etc.
7.NounData attached to a message that guarantees that the message originated from its claimed source.
8.NounA mark or sign of implication.
9.NounA distinguishing feature or product.
10.NounA tuple specifying the sign of coefficients in any diagonal form of a quadratic form.
11.NounA resemblance between the external character of a disease and those of some physical agent, for instance, that existing between the red skin of scarlet fever and a red cloth; supposed to indicate this agent in the treatment of the disease.
12.NounText (or images, etc.) appended to a user's emails, newsgroup posts, forum posts, etc. as a way of adding a personal touch or including contact details."Your signature must not exceed three lines of text, or 600 pixels in height.; forum signature generator"
13.AdjectiveDistinctive, characteristic, indicative of identity."Rabbit in mustard sauce is my signature dish.; The signature route of the airline is its daily flight between Buenos Aires and Madrid."
14.VerbTo sign with one's signature, to write one's signature on.