The phrase 'discard of' is not correct and should not be used in written English. The phrase you would use instead is 'discard'. For example, you could say: "I discarded my old sneakers when I bought a new pair.".
East then made the surprising discard of a low club.
On the club lead he made the dramatic discard of the diamond king.
First, a discard of a spade, which allows the declarer to discard also.
He hoped for an even trump split, but West's discard of a diamond made matters more difficult.
That was one of many factors leading to the discard of 2,644 deceased-donor kidneys in 2011.
After maneuvering the discard of a spade from dummy, he could collect eight trump tricks, four heart tricks and the spade ace.
West would have to win and lead a spade, permitting a ruff in dummy and a discard of declarer's remaining club.
Thanks to Ludwig my first paper got accepted! The editor wrote me that my manuscript was well-written
Listya Utami K.
PhD Student in Biology, Bandung Institute of Technology, Indonesia