trumping noun2 •The act by which something is trumped, topped or capped.Employ two revokes, two trumpings of your partner's best card and two ignorings of a call — all in the same hand! — 1923 •(literary, no longer used) The sound of a trumpet.We list to the trumpings that herald the storm, To the roll of the drum, and the order to form! — 1861 formstrumpings