MONKEY: The American Sign Language (ASL) sign for "monkey"
 

The sign for "monkey" is easy to do -- just act like one. Scratch your sides twice.

MONKEY:

Sample sentence: MONKEY CLIMB TREE CAN? (Can monkeys climb trees?)

If you want to learn more animal signs, check out:

Notes: 

For a discussion regarding how to sign specific types of primates, see: MONKEY (advanced)
Also see: APE

ANIMALS