adjective
Definition: Something that happens unexpectedly or by accident; not planned or certain.
Example: It was a chance meeting that changed my life.
intransitive verb
Definition: To happen or occur unexpectedly or by luck.
Example: It chanced that I found a dollar on the ground.
noun
Definition: An opportunity or possibility for something to happen, often related to luck or circumstances.
Example: She took a chance and applied for the job, even though she wasn't sure she would get it.