Definition of coop

• n. - A barrel or cask for liquor.
• n. - An inclosure for keeping small animals; a pen; especially, a grated box for confining poultry.
• n. - A cart made close with boards; a tumbrel.
• v. t. - To confine in a coop; hence, to shut up or confine in a narrow compass; to cramp; -- usually followed by up, sometimes by in.
• v. t. - To work upon in the manner of a cooper.