animal horn

an obscure or remote corner; every nook and cranny

military formation where troops are split into two groups to support each other and catch the enemy in a pincer movement; describes a situation of mutual support from two sides

corner of a room, shelf, or other space; nook

Every corner; remote or hidden places; everywhere.

The corner of the eye where the upper and lower eyelids meet; canthus

To waste time on insignificant details or reach a dead end due to stubbornness; to get stuck in a narrow way of thinking.