cool
Of a mildly low temperature.
Example
“I like cool weather the most 'cause it's not too hot to wear a jacket but I won't be too cold in my shorts.”
Other meanings
Allowing or suggesting heat relief.
“Linen has made cool and breathable clothing for millennia.”
Of a color, in the range of violet to green.
“If you have a reddish complexion, you should mainly wear cool colors.”
Example sentences
Word history
From Old English "cōl" (cool, cold, tranquil, calm).
Where this comes from
This definition is adapted from “cool” on Wiktionary, by its contributors; example sentences are from Tatoeba, credited to their authors above, published under CC BY-SA 4.0. This page is published under the same licence.