discard

Etymology

From dis- + card. Compare Spanish descartar.

verb

1. (transitive) To throw away, to reject.
   My next stop is Oxford, which has also grown with the addition of new platforms to accommodate the Chiltern Railways service to London via Bicester - although, short sightedly, the planned electrification from Paddington was canned. Evidence of the volte-face can be seen along the line at places such as Radley, where mast piles are already sunk or lie discarded at the lineside. December 2 2020, Paul Bigland, “My weirdest and wackiest Rover yet”, in Rail, pages 67–68
2. (intransitive, card games) To make a discard; to throw out a card.
3. To dismiss from employment, confidence, or favour; to discharge.

noun

1. Anything discarded.
2. A discarded playing card in a card game.
3. (programming) A temporary variable used to receive a value of no importance and unable to be read later.
   Discards can be used with out parameters, with tuples, with pattern matching (Chapters 6 and 8), or even as stand-alone variables. 2017, Andrew Troelsen, Philip Japikse, Pro C# 7: With .NET and .NET Core, page 120