(~es)
1.
An ~ is a false name, especially one used by a criminal.
Using an ~, he had rented a house in Fleet, Hampshire.
N-COUNT
2.
You use ~ when you are mentioning another name that someone, especially a criminal or an actor, is known by.
...the defendant Pericles Pericleous, ~ Peter Smith.
PREP: n-proper PREP n-proper