Search gender: all male female Ryokai Boy Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: ryokai Katakana: リョウカイ 0 Kanji: 凌海 Meaning: 凌Surpass. Come out on top. Overcome. Crush your opponent. 海Sea. Wide and large. A place where many people and things gather. A large lake or pond. A large lake or pond. A frontier. The end of the earth. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Ryokai Boy Name Meaning, Kanji Variations.