SLIP, L. labor, to slide.

1. To slide to glide to move along the surface of a thing without bounding, rolling or stepping.
2. To slide not to tread firmly. Walk carefully, lest your foot should slip.
3. TO move or fly out of place usually without as, a bone may slip out of its place.
4. To sneak to slink to depart or withdraw secretly with away. Thus one tradesman slips away to give his partner fairer play.
5. To err to fall into error or fault. One slippeth in his speech, but not from his heart.
6. To glide to pass unexpectedly or imperceptibly. And thrice the flitting shadow slipp'd away.
7. To enter by oversight. An error may slip into a copy, notwithstanding all possible car.
8. To escape insensibly to be lost. Use the most proper methods to retain the ideas you have acquired, for the mind is ready to let many of them slip.