noun.
A long, narrow, shallow trench made in the ground by a plow.
noun.
A rut, groove, or narrow depression.
noun.
A deep wrinkle in the skin, as on the forehead.
intransitive verb.
To make long, narrow, shallow trenches in; plow.
intransitive verb.
To form grooves or deep wrinkles in.
intransitive verb.
To become furrowed or wrinkled.