The twentieth letter of Classical and Modern Greek; the twenty-second letter of Old and Ancient Greek. / (particle physics) An upsilon meson, or bottomonium.

A long time ago; at some time in the past (a traditional beginning of children's stories, especially fairy tales).

written in upper case; capital

Alternative spelling of upper case

(transitive) To convert (text) to upper case.

The capital letters A, B, C, ... as opposed to the small letters a, b, c, ....

(transitive, slightly more formal) Alternative form of dwell on

Physically above and in contact with. / Physically directly supported by. / Being followed by another so as to form a series. / At (a prescribed point in time). / On.

To tear up (a plant, etc.) by the roots, or as if by the roots; to extirpate, to root up. / (figuratively) To destroy (something) utterly; to eradicate, exterminate.

The act of uprooting something.