Kanji for 'Love': How and When to Use 愛 and 恋

If you need one Japanese kanji for "love," use 愛 (あい, ai, love).

For romantic love or longing, Japanese also uses 恋 (こい, koi, romantic love).

愛 (ai, love) is the broader choice for love and affection. 恋 (koi, romantic love) focuses on romantic feeling. This guide shows where each one appears in real Japanese words, and why 愛人 is not a safe neutral word for "partner."

愛 (ai, love) and 恋 (koi, romantic love): the practical difference

If you want one character that simply says "love," 愛 (ai, love) is the clearest choice. If you are talking specifically about romance or being in love, 恋 (koi, romantic love) is often more precise.

Useful words with 愛 (ai, love)

In common vocabulary, 愛 (ai, love) is usually read あい (ai). Its onyomi reading is used in many compound words.

Useful words with 恋 (koi, romantic love)

恋 (koi, romantic love) is read こい (koi) when it means romantic love by itself. Its common onyomi reading is れん (ren), as in 恋愛 (れんあい, ren'ai, romance).

A common mistake: 愛人 (aijin, lover) does not mean a neutral partner

愛人 (あいじん, aijin, lover) can mean a lover, often outside marriage or an official relationship. Do not use it as a general translation of "partner" or "spouse."

For a romantic partner, 恋人 (こいびと, koibito, romantic partner) is the safer general word. Depending on the relationship, Japanese also uses 彼氏 (kareshi, boyfriend), 彼女 (kanojo, girlfriend), 夫 (otto, husband), and 妻 (tsuma, wife).

How Japanese expresses "I love you"

A direct translation is not always the most natural choice. These expressions have different strengths:

• 好きです。 (すきです, suki desu)
  Literally "I like you," but it can clearly express romantic interest.
• 大好きです。 (だいすきです, daisuki desu)
  "I really like you" or "I love you," depending on context.
• 愛してる。 (あいしてる, aishiteru)
  "I love you." This sounds strong and serious.

Context does a lot of work. Japanese is considerate like that, although it does make dictionary lookups less helpful.

If you want one Japanese symbol for love

Choose 愛 (ai, love) for the broad idea of love. Choose 恋 (koi, romantic love) only when you specifically want romantic love or longing.

For artwork, jewellery, or a tattoo, check the complete phrase rather than choosing characters only because they look good. A single kanji can carry the right general idea, but it cannot show every nuance of a full sentence.

If you are choosing the two ideas together, see how Japanese writes peace as 平和 (heiwa, peace).