Search gender: all male female Tachimasa Boy Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: tachimasa Katakana: タチマサ 0 Kanji: 立正 Meaning: 立Stand up. Stand up straight. Establish a firm basis and foundation. The seasons begin. To come to a position. Unit of capacity (liter). 正Correct. To be reasonable. to fix. exactly. To be in just the right state. New Year. The beginning of things. The original. The real. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Tachimasa Boy Name Meaning, Kanji Variations.