Synonyms and related words :
aboard, above, abovestairs, afloat, airward, all aboard, aloof, athwart the hawse, athwarthawse, aye, before the mast, high, high up, in flight, in sail, in the air, in the clouds, on board, on board ship, on deck, on high, on shipboard, on stilts, on the peak, on tiptoe, over, overhead, skyward, straight up, tiptoe, to the zenith, topside, up, upstairs, upward, upwards,