blur in WordNet English dictionary

1. make dim or indistinct
   "The fog blurs my vision"
   blur  blear 
   
2. become vague or indistinct
   "The distinction between the two theories blurred"
   blur  dim  slur 
   
3. make unclear, indistinct, or blurred
   "Her remarks confused the debate"; "Their words obnubilate their intentions"
   confuse  blur  obscure  obnubilate 
   
4. make a smudge on; soil by smudging
   smear  blur  smudge  smutch 
   
5. to make less distinct or clear
   "The haze blurs the hills"
   blur 
   
6. become glassy; lose clear vision
   "Her eyes glazed over from lack of sleep"
   film over  glaze over  blur 
   

1. a hazy or indistinct representation
   "it happened so fast it was just a blur"; "he tried to clear his head of the whisky fuzz"
   blur  fuzz