parody
Meaning: a satirical imitation
Usage: A hush fell over the classroom when the teacher returned to find Deborah acting out a parody of his teaching style.
travesty
Meaning: a grossly inferior imitation
Usage: According to the school newspaper’s merciless theater critic, Pacific Coast High’s rendition of the musical Oklahoma was a travesty of the original.
emulate
Meaning: to imitate
Usage: I idolize Britney Spears so much that I emulate everything she does: I wear her outfits, sing along to her songs, and date a boy named Justin.