coop

The noun refers to a functional, utilitarian structure designed for livestock. It carries a connotation of safety and containment, though it implies a lack of freedom for the animals inside. As a verb, the word is almost exclusively used in the phrasal form "cooped up." This usage carries a strong negative emotional charge, evoking feelings of claustrophobia, boredom, or frustration resulting from forced confinement in a space that feels too small.