Definition of alias
(Entry 1 of 2)
: otherwise called : otherwise known as —used to indicate an additional name that a person (such as a criminal) sometimes uses John Smith alias Richard Jones was identified as the suspect.
Definition of alias (Entry 2 of 2)
: an assumed or additional name that a person (such as a criminal) sometimes uses a fugitive using several aliases He checked into the hotel using an alias. John Smith, who goes by the alias Richard Jones
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