a·li·as (??l?-?s, ?l?y?s)n.1. An assumed name: The swindler worked under various aliases.2. Computers An alternate name or address, especially an email address that forwards incoming email to another address.3. Electronics A false signal in telecommunication links from beats between signal frequency and sampling frequency.adv. Also known as; otherwise: Johnson, alias Johns.[Latin ali?s, otherwise, at another time, from feminine accusative pl. of alius, other; see al- in Indo-European roots.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.alias (?e?l??s) advat another time or place known as or named: Dylan, alias Zimmerman. n, pl -asesan assumed name[C16: from Latin ali?s (adv) otherwise, at another time, from alius other]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014a?li?as (?e? li ?s) n., pl. -as?es, adv. n. 1. a false name; an assumed name. adv. 2. otherwise called. ?Simpson alias Smith?. [1525?35;