ふく 膨らす Show inflections LinksSentence search for 膨らすSentence search for ふくらすSentence search for 脹らすKanji details for 膨Edit in JMdict Godan verb with 'su' ending, Transitive verb1. to expand; to inflateRare term, See also 膨らますOther forms脹らす 【ふくらす】 Discussions Log in to talk about this word.