To deal with conclusively with a threat or a difficult situation.(verb)
To arrange in an orderly way.(verb)
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Use "dispose of" in a sentence
"Anthony's attorney, Jose Baez, created reasonable doubt, Moore and other legal analysts said, when he said Caylee drowned accidentially and that her grandfather, Casey's father, helped cover it up and dispose of the body."
"III excommunicated Rainald, who had loudly proclaimed in these negotiations the right of the emperor to dispose of the papal see."
"Gladstone wanted the Egyptians to dispose of Urabi quickly, but Wilfrid Blunt had ensured that his hero could not be executed quietly."