(1):

(adv.) At another time.

(2):

(adv.) 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.

(3):

(n.) A second or further writ which is issued after a first writ has expired without effect.

(4):

(n.) Another name; an assumed name.