On' is a two-letter preposition that can be used to indicate a variety of relationships between two entities. 'AGAINST' is a seven-letter word meaning in opposition to or in contrast with. 'COVERING' is an eight-letter word meaning to envelop or to provide protection for. 'TOUCHING' is an eight-letter word meaning to come into contact with. 'BESIDE' is a six-letter word meaning AT the side of or next to. 'ADJACENT' is an eight-letter word meaning close or near. 'APPROACHING' is an eleven-letter word meaning coming nearer in space, time, or degree. 'BY' is a two-letter word meaning near or close to. 'AT' is a two-letter word meaning in the area of or in the vicinity of. 'FORWARD' is a seven-letter word meaning toward the front or AHEAD. 'ABOVE' is a five-letter word meaning higher than or OVER. 'FORTH' is a five-letter word meaning onward in time or space. 'OVER' is a four-letter word meaning across or ABOVE. 'AHEAD' is a five-letter word meaning in front or before. 'AVAILABLE' is an nine-letter word meaning obtainable or accessible. 'AIRING' is a six-letter word meaning to expose to the air or to broadcast. 'LIT' is a three-letter word meaning illuminated or lighted up. 'ASto' is a four-letter word meaning to the stars. 'ATOP' is a four-letter word meaning on the top or highest point. 'Inre' is a four-letter word meaning inwardly or within. 'UPON' is a four-letter word meaning on the top of or OVER. 'DREAM' is a five-letter word meaning to have a series of thoughts, images, and sensations occurring in one's mind during sleep. 'Onand' is a five-letter word meaning to be in a state of being on. 'RIGHT' is a five-letter word meaning correct or proper. 'ALONG' is a five-letter word meaning in a line with or parallel to. 'ABOARD' is a six-letter word meaning on or onto a vehicle or vessel. 'Thelam' is a six-letter word meaning to the letter. 'ASTRIDE' is a seven-letter word meaning with a leg on either side of.