真ん まん Meanings Prefix perfect; dead (center, ahead, etc.); right; just; exactly See also: 真ん中 (まんなか). See also: まんまるい. Kanji 真 true. Read as ま. Words containing 真ん 真ん中 (まんなか) middle 真ん前 (まんまえ) right in front 目を真ん円にする (めをまんまるにする) to be very surprised And 5 more. Jinuma: Japanese Dictionary · Word lists