eliminate

terminate, end, or take out; "Let's eliminate the course on Akkadian hieroglyphics"; "Socialism extinguished these archaic customs"; "eliminate my debts"

do away with

kill in large numbers; "the plague wiped out an entire population"

dismiss from consideration or a contest; "John was ruled out as a possible suspect because he had a strong alibi"; "This possibility can be eliminated from our consideration"

eliminate from the body; "Pass a kidney stone"

remove from a contest or race; "The cyclist has eliminated all the competitors in the race"

remove (an unknown variable) from two or more equations