eliminate

verb

1. terminate, end, or take out"Let's eliminate the course on Akkadian hieroglyphics"
2. get rid of something
3. kill in large numbers"the plague wiped out an entire population"
4. dismiss from consideration or a contest"John was ruled out as a possible suspect because he had a strong alibi"
5. eliminate from the body"Pass a kidney stone"
6. remove from a contest or race"The cyclist has eliminated all the competitors in the race"
7. remove (an unknown variable) from two or more equations