사슴 (saseum) means “deer” | MotiTan Korean Dictionary

More examples

등산 중에 사슴을 만났어요.teung san chung e sa seu meul man na sseo yo

I met a deer while hiking.

An antlered plant-eating mammal associated with forests and grasslands.

뿔이 있으며 숲이나 초원에 사는 초식성 포유동물의 이름.ppu ri i sseu myeo su pi na cho wo ne sa neun cho sik sseong po yu dong mu rui i reum

This is a native Korean word rather than a Sino-Korean borrowing, and its older formation is not transparently recoverable from the modern language.

Korean usually uses an animal counting word when giving a number, so counting animals does not follow the same pattern as counting ordinary objects in English.