• 盈虚えいきょ

  waxing and waning (of the moon), phase

• 充盈じゅうえい

  filling (something up)

• 満盈まんえい

  being completely full

• 一虚一盈いっきょいちえい

  constantly changing phase and being highly unpredictable

• 虧盈きえい

  waxing and waning

• 盈虧えいき

  waxing and waning (of the moon), phase