1. (v.) To imitate speech and actions.

2. (n.) One who imitates or mimics, especially one who does so for sport; a copyist; a buffoon.

3. (v. t.) To imitate or ape for sport; to ridicule by imitation.

4. (v. t.) To assume a resemblance to (some other organism of a totally different nature, or some surrounding object), as a means of protection or advantage.