anything that is cast aside or discarded
"The old magazines joined the pile of other trash in the corner as things we decided to discard."
(cards) the act of throwing out a useless card or of failing to follow suit
"After realizing he held no spades, Mark was forced to discard his ace of hearts during the hand."
getting rid something that is regarded as useless or undesirable
"She tossed the crumpled receipt into the bin to discard it before leaving the store."
Anything discarded.
"The new recycling policy asks residents to separate all their paper and plastic from any other discarded items before placing them in the bin."
to throw away, to reject.
"He decided to discard the old newspaper as soon as he finished reading it."