intransitive verb
Definition: To come together in a group or cluster, often in a way that causes something to swell or protrude.
Example: The runners began to bunch at the starting line, creating a tight group.
noun
Definition: A group of similar items or people that are gathered or placed together, like a cluster of grapes or a collection of keys.
Example: I bought a bunch of bananas from the store.
transitive verb
Definition: To gather or form something into a group or cluster.
Example: She bunched the fabric together to make it easier to carry.