noun
Refers to a hard projecting growth on an animal's head, including both horns and antlers depending on the animal.
牛の角は思ったより大きかった。
The cow's horns were bigger than I expected.
鹿の角は毎年生え替わる
A deer's antlers are replaced every year.
noun
Everyday use for slender feeler-like projections, especially a snail's tentacles; the more technical word for insect antennae is often 触角.
カタツムリがつのを出した。
The snail stuck out its tentacles.
noun
peak; horn-like projection
Used for a pointed shape resembling a horn; common in cooking in the phrase 角が立つ, meaning that whipped cream, egg whites, etc. form peaks.
生クリームを角が立つまで泡立てる。
Whip the cream until peaks form.