こうか 降下 LinksSentence search for 降下Sentence search for こうかKanji details for 降 and 下Edit in JMdict Noun, Suru verb, Intransitive verb1. descent; fall; drop; (atmospheric) depressionNoun, Suru verb, Intransitive verb2. passing down (of an order, decree, etc.) Discussions Log in to talk about this word.