upon
upon [opon] adv
see upon, prep.
- About; over; with attention to.
- At; toward; in the direction of.
upon [opon] prep
ME; see up, adv. + on, adv.
- On; using; standing upward with.
- On; in contact with; at the point of.
- Affecting; opposing; up against; grating on.
- During.