This is the 4359th most frequent Japanese word.
厚い
Thick; warm; kind-hearted.
厚い is used metaphorically to indicate a profound and strong quality.
彼の友情は厚く、とても信頼できる。
His friendship is deep, and very trustworthy.
厚い is used technically to describe the thickness dimension of the pan's bottom.
鍋の底が厚いと料理が均等に熱されます。
When the bottom of the pan is thick, the food heats evenly.
厚い is used to describe the physical thickness of an object.