Crisp has 13 different meanings across 4 categories:
Noun · Verb · Adjective · Proper Noun
a thin crisp slice of potato fried in deep fat
"He added a few crispy bacon bits to his salad, but he really wanted those golden, crunchy slices of fried potatoes known as crisps."
A thin slice of fried potato eaten as a snack.
"We bought bags of crispy french fries to eat while watching the movie."
In plain English: A crisp is an old, dry leaf that has fallen from a tree and turned brown during autumn.
"The crisp was still warm when he took his last bite at lunch."
Usage: Use this term specifically to describe thin, deep-fried potato slices rather than raw vegetables or other crunchy snacks. It is the standard word for chips in American English and crisps in British English when referring to this particular food item.
To make crisp.
"The chef fried the potatoes until they became perfectly crisp."
Sharp, clearly defined.
"The crisp outline of the mountain stood out sharply against the pale sky."
A surname.
"Crisp won the tournament as part of a team bearing his family name."
The word crisp originally meant "curly" in Old English before entering Middle English with that same meaning for hair. Its modern senses describing a crunchy texture or cool weather likely developed through onomatopoeia to represent crinkling sounds and as an extension of the idea of something being tightly folded like curly locks.