Kill is defined as to cause to die or to destroy.(verb)
An example of kill is stepping on an ant.
See kill in Webster's New World College Dictionary
Origin: ME kullen, killen < ? OE *cyllan, special late phonetic development of cwellan, to kill: see quell
Origin: Du kil < MDu kille, akin to ON kīll, inlet
See kill in American Heritage Dictionary 4
verb killed, kill·ing, kills verb, transitive
Origin: Middle English killen
Origin: , perhaps from Old English *cyllan; see gwelə- in Indo-European roots.
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