Plagiarist

['pledʒərɪst]

(noun.) someone who uses another person's words or ideas as if they were his own.

Typed by Gladys--From WordNet

(n.) One who plagiarizes; or purloins the words, writings, or ideas of another, and passes them off as his own; a literary thief; a plagiary.

Checked by Godiva

n. Plagiary.

Checker: Lucille