snag in WordNet English dictionary

1. an unforeseen obstacle
   hang-up  hitch  rub  snag 
   
2. an opening made forcibly as by pulling apart
   "there was a rip in his pants"; "she had snags in her stockings"
   rip  rent  snag  split  tear 
   
3. a dead tree that is still standing, usually in an undisturbed forest
   "a snag can provide food and a habitat for insects and birds"
   snag 
   
4. a sharp protuberance
   snag 
   

1. catch on a snag
   "I snagged my stocking"
   snag 
   
2. hew jaggedly
   snag 
   
3. get by acting quickly and smartly
   "snag a bargain"
   snag