castle in the air Definition

daydream, dream, reverie, revery, daydreaming, aerial, air-built, moat, moated, port, royal, daydreamer, dall, fall, falls, gate, ports, slot, tower, piece, torch, abc, ambit, arch, ascot, bail, bailey, bar, barred, bars, besiege, bower, camelot, castellated, castled, cork, corner, dungeon, enceinte, forecastle, fortress, garrison, grounds, guard, hall, hold, home, igloo, kyoto, leeds, lord, move, oslo, parade, parading, peel, peeling, rook, ruin, ruins, skye, turret, turreted, var, ward, windsor, keep, keeps, moor, osaka, parapet, auster, bluebeard, castellar, castellate, clank, curtain wall, echauguette, garderobe, hephaestus, irene, sand castle, antique, decay, pale, pales, wand, aerodrome, air conditioning, air gun, air terminal, airforce, aisle, alfresco, ammonia, antenna, area, aria, aspect, aspirate,