navigate, sail, cruise, fly
コウ / —
empty, sky, void, vacant, vacuum
クウ / そら
eaves, roof, house, heaven
ウ / —
mid-air, air, space, sky, memorization, interval of time
チュウ / —
bureau, board, office, affair, conclusion, court lady, lady-in-waiting, her apartment
キョク / つぼね