adjective
Definition: This word describes something that is divided into two equal parts or is only part of a whole.
Example: She ate half of the pizza for lunch.
adverb
Definition: To a degree of 50 percent; not fully or completely.
Example: The glass is half full of water.
noun
Definition: One of two equal parts that together make a whole, or a part that is approximately equal to another part.
Example: I only ate half of my sandwich because I was full.