alias Meaning, Definition & Usage

  1. noun a name that has been assumed temporarily
    assumed name; false name.
  2. adverb as known or named at another time or place
    a.k.a.; also known as.
    • Mr. Smith, alias Mr. Lafayette

WordNet

A"li*as adverb
Etymology
L., fr. alius. See Else.
Definitions
  1. (Law) (a) Otherwise; otherwise called; -- a term used in legal proceedings to connect the different names of any one who has gone by two or more, and whose true name is for any cause doubtful; as, Smith, alias Simpson. (b) At another time.
A"li*as noun
Etymology
L., otherwise, at another time.
Wordforms
plural Aliases
Definitions
  1. (Law) (a) A second or further writ which is issued after a first writ has expired without effect. (b) Another name; an assumed name.

Webster 1913