A groove or trench made in the ground, typically for planting seeds.

A deep line or wrinkle in someone's forehead.

माथे में गहरी रेखा या झुर्री

English Usage: His furrowed brow indicated his concern over the matter.

Hindi Usage: उसकी माथे की गहरी रेखा इस मुद्दे पर उसकी चिंता को दर्शाती थी।