ふ 臥す Show inflections LinksSentence search for 臥すSentence search for ふすKanji details for 臥Edit in JMdict Godan verb with 'su' ending, Intransitive verb1. to lie down (in bed); to retire (to bed); to become bedridden (with an illness)See also 臥せる, more formal than 臥せる Discussions Log in to talk about this word.