Search gender: all male female Teisui Boy Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: teisui Katakana: テイスイ 1 Kanji: 貞水 Meaning: 貞Correct. The heart is right. 水Water. Something liquid. Sea, river, swamp, lake, spring, etc. To work with water. To moisten. To soak in. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Teisui Boy Name Meaning, Kanji Variations.