dog-ear verb & noun. ['dɒgɪǝ] Also (earlier) dog's-ear ['dɒgz-]. M17.
[from DOG noun (+ -'S¹) + EAR noun¹.]
A. verb trans. Disfigure (a book etc.) by turning down the corners of the pages; make worn or grubby by repeated or careless use. Chiefly as dog-eared ppl adjective. M17.
b. noun.
I. Now usu. dog-ear.
1. The corner of the page of a book turned over or creased by repeated or careless use, or to keep a place. M18.

[TahlilGaran] English Dictionary ▲

dog ear
II. dog's-ear only.

2. Nautical. A loop formed by a leech rope when a sail is reefed. M19.

3. Nautical. A corner of a shark's-mouth in an awning. L19.

[TahlilGaran] English Dictionary ▲