The word "chap" can have several meanings and uses in English. Let's break it down in an easy-to-understand way.
Noun: A "chap" is an informal term for a boy or man. It is often used in British English. For example, if you say, "He's a nice chap," it means he is a nice guy.
Noun (specific to leather): "Chaps" (usually in the plural form) are leather leggings worn by cowboys. They cover the legs and are often used to protect them while riding horses. They have a belt and may have flared outer flaps.
Other Meanings:
In conclusion, "chap" is a versatile word in English with meanings that vary based on context.