adjective
Definition: Having a sharp, unpleasant taste or smell, often associated with something that is harsh or severe.
Example: The coffee was too bitter for my taste, so I added some sugar.
noun
Definition: A person or animal that bites, often used to describe someone who is aggressive or harmful.
Example: The dog is a known biter and should be kept away from strangers.
verb
Definition: To use the teeth to cut into something.
Example: The dog biter the toy and played with it.