(boxing) Alternative spelling of uppercut

Alternative form of wear one's heart on one's sleeve

Alternative form of wear one's heart on one's sleeve

To grasp or take hold of (an object) suddenly, forcibly, or tightly.

(idiomatic, informal) Posh, upper-class; pertaining to the upper crust.

Alternative spelling of upper semi-continuous

(of a real-valued function on a topological space) Such that, for each fixed number, the subspace of points whose images are at least that number is closed.

Universal product code.

plural of UPC code

(mathematics) The median of the upper or highest half of a data set, especially of a sample, population, or probability distribution.