(1):

(n.) A framework of timbers and plank backing for a shaft lining, to prevent caving, percolation of water, etc.

(2):

(n.) The act of inclosing or confining in a crib or in close quarters.

(3):

(p. pr. & vb. n.) of Crib

(4):

(n.) Purloining; stealing; plagiarizing.

(5):

(n.) A vicious habit of a horse; crib-biting. The horse lays hold of the crib or manger with his teeth and draws air into the stomach with a grunting sound.