忠誠心 ちゅうせいしん Meanings Noun loyalty; faithfulness Kanji 忠 loyal. Read as チュウ. 誠 sincere. Read as セイ. 心 heart. Read as シン. Example sentences 彼女の忠誠心を評価します。I appreciate her loyalty. Common phrases 忠誠心を示す 忠誠心を高める Jinuma: Japanese Dictionary · Word lists