n. someone who assumes a false identity
Some Sarah Palin impostor somehow got access to Sarah Palin's Facebook page and posted the bizarre comments.
Sentence in Classic:
You did not gradually open your round childish eyes wider and wider to the discovery of that impostor of a woman who calculates her stores of peace of mind for when she wakes up in the night.
Great Expectations By Charles Dickens Context
A certain Magus having fraudulently usurped the throne of Persia; Ortanes, a grandee of that realm, discovering the fraud, disclosed it to six others of the chief nobility, telling them that it behoved them to free the kingdom from the tyranny of this impostor.
Discourses on the First Decade of Titus Livius By Niccolo Machiavelli Context
Notwithstanding this man was held in very unequal estimation among the Hurons, some believing implicitly in his power, and others deeming him an impostor, he was now listened to by all with the deepest attention.
The Last of the Mohicans By James Fenimore Cooper Context
We agreed, without any more consultation, that we would both go, and that Dora was a little Impostor, who feigned to be rather unwell, because she liked to be petted.
David Copperfield By Charles Dickens Context
The impostors requested him very courteously to be so good as to come nearer their looms; and then asked him whether the design pleased him, and whether the colors were not very beautiful; at the same time pointing to the empty frames.
Andersen's Fairy Tales By Hans Christian Andersen Context