ほんま 本間 LinksSentence search for 本間Sentence search for ほんまKanji details for 本 and 間Edit in JMdict Noun1. official size of a tatami mat for measuring room size (esp. a Kyoto-size tatami mat)See also 京間Noun2. basic rhythm (in traditional Japanese music)MusicNoun3. room (in a brothel) of a prostitute of the highest rankArchaic Discussions Log in to talk about this word.