alias

The definition of an alias is a name different than a person’s birth name.

(noun)

An example of an alias is when a person goes into the Witness Protection Program, and they have to assume a new identity with a new name so no one can find them.
An example of alias is when one refers to the Dark Knight, or otherwise known as Batman.

See alias in Webster's New World College Dictionary

noun pl. aliases

an assumed name; another name

Origin: L, at another time < alius, other: see else

adverb

otherwise named: Bell alias Jones

See alias in American Heritage Dictionary 4

noun

An assumed name: The swindler worked under various aliases.
Electronics A false signal in telecommunication links from beats between signal frequency and sampling frequency.

adverb

Also known as; otherwise: Johnson, alias Johns.

Origin:

Origin: Latin aliās, otherwise, at another time

Origin: , from

Origin: feminine accusative pl. of alius, other; see al-¹ in Indo-European roots

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