Meaning: まそうn. (Kanji=枡,升) measure, unit of capacityv. (Kanji=益す,増す) increase, multiply, add, gainn. (Kata=マス, Kanji=鱒) trout, sea trout, type of fish especially several types of fish related to the salmon; positive auxiliary word used to express the standard polite form in the present tensev. (Alt=まします, Kanji=坐す,在す) exist, be