creep in WordNet English dictionary

1. show submission or fear
   fawn  crawl  creep  cringe  cower  grovel 
   
2. move slowly; in the case of people or animals with the body near the ground
   "The crocodile was crawling along the riverbed"
   crawl  creep 
   
3. to go stealthily or furtively
   "..stead of sneaking around spying on the neighbor's house"
   sneak  mouse  creep  pussyfoot 
   
4. grow or spread, often in such a way as to cover (a surface)
   "ivy crept over the walls of the university buildings"
   creep 
   

1. a slow mode of locomotion on hands and knees or dragging the body
   "a crawl was all that the injured man could manage"; "the traffic moved at a creep"
   crawl  crawling  creep  creeping 
   
2. a pen that is fenced so that young animals can enter but adults cannot
   creep 
   
3. a slow longitudinal movement or deformation
   creep 
   
4. someone unpleasantly strange or eccentric
   creep  weirdo  weirdie  weirdy  spook