1) (of ships, boats) under control, not tied or anchored (adrift)
2) a floating object, anchored to the bottom of the sea used to guide ships, to indicate reefs, submerged wrecks etc (buoy)
firmly attached or fastened; always the same
permanent, steady
not able to move or be moved; not moving
motionless, fixed
firm; not likely to move or change; a building in which horses are kept and fed; a number of horses (especially racehorses) belonging to one particular owner
constant, fixed; resistant
not moving or changing
not moving; fixed