against

عَلَى \ against: touching (usually sth. upright): The rain beat against the window. He pressed his nose against the glass. on: showing where sb. or sth. is placed: He lay on his back on the bed. The picture hung on a nail on the wall. Your name is on the list. He hit me on the nose. The boat is on the river (in the water). The house is on the river (beside the water), as in the previous meaning, but with movement (often with to) He jumped on (to) his horse. The book fell on (to) the floor. onto: on to: He sprang onto the table. over: lying across; resting on; covering: A cloud was over the sun. She spread a cloth over the table, across the surface of Ships sail over the sea, above (in rank, etc.) He rules over a proud people, about; concerning They quarrelled over the resutl of the race. You need not hurry over your dinner. upon: on.