Upon

Part of speech: preposition (prep.)

On; -- used in all the senses of that word, with which it is interchangeable. "Upon an hill of flowers." Chaucer. Our host upon his stirrups stood anon. Chaucer. Thou shalt take of the blood that is upon the altar. Ex. xxix. 21. The Philistines be upon thee, Samson. Judg. xvi. 9. As I did stand my watch upon the hill. Shak. He made a great difference between people that did rebel upon wantonness, and them that did rebel upon want. Bacon. This advantage we lost upon the invention of firearms. Addison. Upon the whole, it will be necessary to avoid that perpetual repetition of the same epithets which we find in Homer. Pope. He had abandoned the frontiers, retiring upon Glasgow. Sir. W. Scott. Philip swore upon the Evangelists to abstain from aggression in my absence. Landor.