behind :the fleshy part of the human body that you sit on
he deserves a good kick in the butt|are you going to sit on your fanny and do nothing?
behind :having the lower score or lagging position in a contest
behind by two points|the 8th inning found the home team trailing
behind :in or to or toward the rear
he followed behind|seen from behind, the house is more imposing than it is from the front|the final runners were far behind
behind :remaining in a place or condition that has been left or departed from
when he died he left much unfinished work behind|left a large family behind|the children left their books behind|he took off with a squeal of tires and left the other cars far behind
behind :of timepieces
the clock is almost an hour slow|my watch is running behind
behind :in or into an inferior position
fell behind in his studies|their business was lagging behind in the competition for customers
behind :in debt
he fell behind with his mortgage payments|a month behind in the rent|a company that has been run behindhand for years|in arrears with their utility bills