えいき 盈虧 LinksSentence search for 盈虧Sentence search for えいきKanji details for 盈 and 虧Edit in JMdict Noun, Suru verb, Intransitive verb1. waxing and waning (of the moon); phaseAstronomy, Rare termNoun, Suru verb, Intransitive verb2. rising and falling (of fortune)Rare term Discussions Log in to talk about this word.