You are having a conversation with your friend Clay about his ideal romantic partner. He begins by saying that he needs to be with "someone who is intrinsic." As a good listener, you try to understand what he means; perhaps he meant to say "intrinsically motivated" or perhaps he simply misused the term "intrinsic." You listen further and then realize that what Clay really meant to say was "introspective." Your grasp of is what allowed you to understand what Clay was trying to convey. semantics
syntax
phonology
morphology