Chilli
Part of speech: noun
Definition: The pungent fresh or dried fruit of any of several cultivated varieties of capsicum. Chili con carne. Powdered chilli peppers, used as a spice or flavouring in cooking.
Chilly
Part of speech: adjective
Definition: Cold enough to cause shivering; or suddenly feeling coldUnfriendly or distant and cool
Example sentence: I'm sort of loving the feminine skirts and the cozy tops, especially when it's starting to get a little chilly out.