Synonyms to upon which

on, about, above, accidental, accompanying, across, ado, afloat, afoot, after which, against, ahead, along, among, anent, apropos of, as for, as regards, as respects, as to, astraddle, astride, at, atop, by, by dint of, by means of, by use of, by virtue of, by way of, circumstantial, concerning, current, doing, en route to, eventuating, for, forth, forward, forwards, from, going on, happening, headed for, hereby, hereinafter, herewith, horseback, in, in connection with, in contact with, in hand, in passage to, in point of, in re, in reference to, in regard to, in relation to, in relation with, in respect to, in the wind, in transit to, in virtue of, incidental, near, next to, occasional, occurring, of, on foot, on horseback, on route to, on top of, ongoing, onward, onwards, opposite, over, over against, passing, per, pertaining to, pertinent to, prevailing, prevalent, re, referring to, regarding, relating to, relative to, respecting, resultant, speaking of, straddle, straddle-legged, straddleback, taking place, thanks to, thereby, therewith, through, to, touching, toward, towards, under way, up, up against, upon