たんいお 単位を落とす Show inflections LinksSentence search for 単位を落とすSentence search for たんいをおとすKanji details for 単, 位 and 落Edit in JMdict Expressions (phrases, clauses, etc.), Godan verb with 'su' ending1. to fail to earn a creditExpressions (phrases, clauses, etc.), Godan verb with 'su' ending2. to fail to make the grade Discussions Log in to talk about this word.