Slip v. i. [imp. & p. p. Slipped p. pr. & vb. n. Slipping.]
 1. To move along the surface of a thing without bounding, rolling, or stepping; to slide; to glide.
 2. To slide; to lose one's footing or one's hold; not to tread firmly; as, it is necessary to walk carefully lest the foot should slip.
 3. To move or fly (out of place); to shoot; -- often with out, off, etc.; as, a bone may slip out of its place.
 4. To depart, withdraw, enter, appear, intrude, or escape as if by sliding; to go or come in a quiet, furtive manner; as, some errors slipped into the work.
 Thus one tradesman slips away,
 To give his partner fairer play.   --Prior.
    Thrice the flitting shadow slipped away.   --Dryden.
 5. To err; to fall into error or fault.
    There is one that slippeth in his speech, but not from his heart.   --Ecclus. xix. 16.
 To let slip, to loose from the slip or noose, as a hound; to allow to escape.
    Cry, =\“Havoc,” and let slip the dogs of war.\=   --Shak.