How to say "devotion" in Japanese

• 献身けんしんCommon
  noun, suru verb, intransitive verbCovers devotion as selfless dedication — giving oneself up for a person, family, or cause. The closest match when devotion implies self-sacrifice, as in a parent's devotion to her children.
  仕事場しごとばの管理者かんりしゃは、正確せいかくさ、効率性こうりつせい、献身けんしんを期待きたいする。↗

  Office managers expect accuracy, efficiency, and dedication.
• 精進しょうじんCommon
  noun, suru verb, intransitive verbDevotion here means diligent, single-minded effort toward a pursuit or practice rather than feeling toward a person; use it for devoting oneself to training, study, or a craft.
  天才てんさいは１パーセントが霊感れいかんであり、９９パーセントは精進しょうじんである。↗

  Genius is one percent inspiration and ninety-nine percent perspiration.
• 真心まごころJLPT N1approx.Common
  no-adjectiveDevotion as warm, wholehearted sincerity — a true heart offered to another person. Fits when the English word points to genuine feeling and good faith rather than sacrifice or effort.
  彼女かのじょは彼かれに真心まごころこめて感謝かんしゃしました。↗

  She thanked him with all her heart.
• 忠義ちゅうぎCommon
  na-adjective, nounDevotion in the sense of loyalty and faithfulness to a lord, master, or cause. If the English sentence is really about allegiance rather than dedication or feeling, this is the word.
• 至誠しせいCommon
  nounExpresses devotion as utmost sincerity — a completely honest, single-hearted commitment to one's duty or to others. Choose it when devotion means utter sincerity of heart rather than sacrifice, effort, or loyalty.

Choose 献身 for self-sacrificing dedication, 精進 for devoted effort toward a pursuit, 真心 for heartfelt sincerity toward people, 忠義 for loyalty to a master or cause, and 至誠 for devotion as utmost sincerity.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 献身けんしんdevotion
• 精進しょうじんconcentration
• 真心まごころsincerity
• 忠義ちゅうぎloyalty
• 至誠しせいsincerity
• 信心しんじんfaith
• 熱愛ねつあいpassionate love
• 執心しゅうしんdevotion
• 忠ちゅうloyalty
• 忠信ちゅうしんfaithfulness
• 赤心せきしんsincerity
• 忠心ちゅうしんloyal heart
• 篤信とくしんdevoutness
• 忠愛ちゅうあいloyalty
• 赤誠せきせいsincerity
• 深い愛情ふかいあいじょうdeep affection
• 信仰心しんこうしん(religious) piety
• 忠順ちゅうじゅんallegiance
• 鍾愛しょうあいdeep affection
• 信しん(religious) faith
• 心酔しんすいdevotion
• 丹たんsincerity