A proverb.
A mark or sign of implication.
Signs on the stave indicating key and tempo, composed of the key signature and the time signature.
A pattern used for matching the identity of a virus, the parameter types of a method, etc.
Text (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.
The part of a doctor’s prescription containing directions for the patient.
A person's name, written by that person, used as identification or to signify approval of accompanying material, such as a legal contract.
A dish that is characteristic of a particular chef.
A group of four (or a multiple of four) sheets printed such that, when folded, they become a section of a book.
A tuple specifying the sign of coefficients in any diagonal form of a quadratic form.
Data attached to a message that guarantees that the message originated from its claimed source.
An act of signing one's name; an act of producing a signature.
Distinctive, characteristic, indicative of identity.