WordNet sense 1 (a sudden sharp feeling):

pang, twinge

WordNet sense 2 (use a knife on):

knife

WordNet sense 3 (stab or pierce):

jab

WordNet sense 4 (poke or thrust abruptly):

dig, poke, prod

WordNet sense 5 (a strong blow with a knife or other sharp pointed instrument):

thrust, knife thrust

WordNet sense 6 (informal words for any attempt or effort):

shot