GNU Dico
From WordNet dictionary, version 3.0:
kill
n. 1. the act of terminating a life
Synonyms: killing, putting to death
2. the destruction of an enemy plane or ship or tank or missile; "the pilot reported two kills during the mission"
v. 1. cause to die; put to death, usually intentionally or knowingly; "This man killed several people when he tried to rob a bank"; "The farmer killed a pig for the holidays"
2. thwart the passage of; "kill a motion"; "he shot down the student's proposal"
Synonyms: shoot down, defeat, vote down, vote out
3. end or extinguish by forceful means; "Stamp out poverty!"
Synonyms: stamp out
4. be fatal; "cigarettes kill"; "drunken driving kills"
5. be the source of great pain for; "These new shoes are killing me!"
6. overwhelm with hilarity, pleasure, or admiration; "The comedian was so funny, he was killing me!"
7. hit with so much force as to make a return impossible, in racket games; "She killed the ball"
8. hit with great force; "He killed the ball"
9. deprive of life; "AIDS has killed thousands in Africa"
10. cause the death of, without intention; "She was killed in the collision of three cars"
11. drink down entirely; "He downed three martinis before dinner"; "She killed a bottle of brandy that night"; "They popped a few beer after work"
Synonyms: toss off, pop, bolt down, belt down, pour down, down, drink down
12. mark for deletion, rub off, or erase; "kill these lines in the President's speech"
Synonyms: obliterate, wipe out
13. tire out completely; "The daily stress of her work is killing her"
14. cause to cease operating; "kill the engine"
15. destroy a vitally essential quality of or in; "Eating artichokes kills the taste of all other foods"