すぼ 窄まる Show inflections LinksSentence search for 窄まるSentence search for すぼまるSentence search for つぼまるKanji details for 窄Edit in JMdict Godan verb with 'ru' ending, Intransitive verb1. to get narrower; to contractUsually written using kana aloneOther forms窄まる 【つぼまる】 Discussions Log in to talk about this word.