Definition of: creep

(krēp) v.i. crept, creep·ing
1. To move like a serpent; crawl.
2. To move imperceptibly, slowly, secretly, or stealthily.
3. To exhibit servility; cringe.
4. To have a sensation as of contact with creeping things.
5. To grow along a surface or support: creeping plants.
6. To slip out of place: A sleeve creeps up the arm.
7. To move slightly along the line of length: said of railroad tracks.
—noun
1. The act of creeping.
2. plural A nervous sensation as of insects creeping under the flesh; hence, uneasy apprehensiveness.
3. Metall. A phenomenon associated with metals subjected to critical temperature and stresses, and characterized by a slow slipping or flow of the material.
4. Geol. The gradual movement of rock waste and soil down a slope from which it has been loosened by weathering. [OE crēopan]