Definition of "eyebrow" in English

noun

1. The hair that grows over the bone ridge above the eye socket.

2. (construction) A dormer, usually of small size, whose roof line over the upright face is typically an arched curve, turning into a reverse curve to meet the horizontal line at either end.

3. A clump of waste fibres that builds up in a roller machine.

verb

1. (intransitive) To build up waste fibres in a roller machine.

2. (transitive) To signal with one's eyebrows.