魔
ま
☆ noun (common) (futsuumeishi)
◆ demon, devil, evil spirit, evil influence
魔王はついに気を失ってどうと倒れた。
The demon lord finally lost conciousness and fell to the floor with a thud.
魔女集会で悪魔を召喚する。
Her coven conjures the demons.
魔王が神に野球で勝負を挑んだ。
The devil challenged God to a baseball game.
☆ noun, used as a suffix
◆ someone who (habitually) performs some (negative) act