親友（しんゆう、shinyuu）
- best friend

The Japanese word 親友 means "best friend," "close friend," or "bosom friend." It describes a relationship characterized by deep trust, mutual understanding, and affection. The bond between 親友 often involves sharing personal experiences, supporting each other through difficult times, and a strong emotional connection. 親友 is more intimate than a general friend 友達. It signifies a person who is exceptionally close and valued.

⚫︎彼には昔からの親友がいます。 Translation: He has a best friend from way back. ⚫︎彼女は私の親友です。 Translation: She is my best friend. ⚫︎私たちは卒業後も親友であり続けました。 Translation: We remained best friends even after graduation.

You can use 親友 to refer to someone you consider your closest and most trusted friend. It's suitable for situations where you want to emphasize the depth of your friendship. You wouldn't typically use 親友 for casual acquaintances or friends you don't have a close relationship with. The word expresses a sense of warmth and a strong emotional connection.

親友 is written using the kanji 親 (shin), meaning "parent" or "close," and 友 (yū), meaning "friend." The pronunciation is しんゆう (shinyū) in hiragana. There are no other standard ways to write this word. The okurigana is not applicable here as the word is composed of kanji only.

⚫︎ 大親友 (daishinyū) - "very best friend" (more emphatic than 親友). ⚫︎ 相棒 (aibou) - "partner," "buddy" (can imply a close friend with shared activities or goals, often used for male friends). ⚫︎ 親しい友人 (shitashii yūjin) - "close friend." ⚫︎ 無二の親友 (muni no shinyū) - "inseparable best friend."

⚫︎ 知り合い (shiriai) - "acquaintance." ⚫︎ 他人 (tanin) - "stranger," "other person." ⚫︎ 敵 (teki) - "enemy."

彼は困難な時、親友に支えられました。 ・Translation: He was supported by his best friend during difficult times. ・Explanation: This sentence demonstrates the emotional support and reliance often associated with a 親友 relationship.

彼女は親友との絆を大切にしています。 ・Translation: She cherishes the bond with her best friend. ・Explanation: This sentence emphasizes the value placed on the deep connection and relationship with a 親友.

The word 親友 is composed of two kanji. 親 originally meant "parent" or "close relative," implying intimacy and care. 友 means "friend." Combined, the meaning suggests a friend as close as family, someone you are deeply familiar with and care for.