Search gender: all male female ツヨトシ Japanese Boy Names Variations. 1 names found. gender: all male female Name: tsuyotoshi Katakana: ツヨトシ 0 Kanji: 強寿 Meaning: 強Strong. To be vigorous. To force. 寿Long life. Life. Age. Celebration. Celebration of long life. You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > ツヨトシ Japanese Boy Names Variations.