n.
1.the act of removing or getting rid of something
2.the bodily process of discharging waste matter
3.analysis of a problem into alternative possibilities followed by the systematic elimination of unacceptable alternatives
4.the act of removing an unknown mathematical quantity by combining equations
5.the murder of a competitor
Idiom of the Day
sit up with (someone)
to stay with someone (a sick person) during the night
My mother had to sit up all night because my younger sister was very sick.