An alias is a false name, especially one used by a criminal. Using an alias, he had rented a house in Fleet, Hampshire
You use alias when you are mentioning another name that someone, especially a criminal or an actor, is known by. the defendant Pericles Pericleous, alias Peter Smith. a false name, usually used by a criminal
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
a name that has been assumed temporarily as known or named at another time or place; "Mr