Difference between Signature and Initial

Signature

Part of speech: adjective

Definition: distinctive, characteristic indicative of identity

Part of speech: noun

Definition: A person's autograph name. The act of signing one's name. That part of a doctor's prescription containing directions for the patient. Signs on the stave indicating key and tempo A group of four (or a multiple of four) pages printed such that, when folded, become a section of a book A pattern used for matching the identity of a virus, the parameter types of a method, etc. Data attached to a message that guarantees that the message originated from its claimed source. A mark or sign of implication.

Initial

Part of speech: adjective

Definition: Chronologically first, early; of or pertaining to the beginning, cause or originSpatially first, placed at the beginning, in the first position; especially said of the first letter of a word

Part of speech: noun

Definition: The first letter of a word or a name.In plural, the first letter of each word of a person's full name considered as a unitA distinguished initial letter of a chapter or section of a document.

Part of speech: verb

Definition: To sign one's initial(s), as an abbreviated signature.