ま 増す Common word JLPT N3 Wanikani level 25 Show inflections LinksSentence search for 増すSentence search for ますSentence search for 益すKanji details for 増Edit in JMdict Godan verb with 'su' ending, Intransitive verb, Transitive verb1. to increase; to growOther forms益す 【ます】Notes益す: Rarely-used kanji form. Discussions Log in to talk about this word.