An eyebrow is a hair or line above your eyes.
Your eyebrows are like two little arches that frame your eyes. You probably think about them when you get ready for school or work - do you want to shape them, pluck them, or just let them be? Sometimes people say "raise an eyebrow" which means to look surprised or skeptical - it's not a command to actually lift up your real eyebrows!
The hair that grows over the bone ridge above the eye socket.
To build up waste fibres in a roller machine.
