Translation guide
In Japanese, referring to an 'old friend' depends on the length and nature of the friendship, as well as the context. The most common and natural expressions are 昔の友達 (mukashi no tomodachi) for a friend from the past, and 古い友人 (furui yūjin) for a long-standing friend. There is no single direct equivalent that covers all nuances.
Referring to a friend you haven't seen in a long time, or someone you were friends with in the past.
The most common and natural way to say 'old friend' when referring to a friend from the past. It emphasizes the time that has passed since the friendship was active.
昨日、昔の友達に偶然会った。
Yesterday, I ran into an old friend by chance.
彼は私の昔の友達です。
He is an old friend of mine (from the past).
A slightly more formal or literary term for an old friend, often used in writing or formal speech. It carries a nostalgic tone.
旧友との再会を楽しみにしている。
I'm looking forward to reuniting with my old friend.
Refers to an old acquaintance or friend from the past, often with a sense of familiarity. It can be used for people or places.
彼は私の昔なじみで、よく一緒に遊んだ。
He's an old friend of mine; we used to play together a lot.
Referring to a friend you have known for a long time and are still in contact with.
Used for a friend you have known for a long time, emphasizing the duration of the friendship. Slightly more formal than 昔の友達.
彼は私の古い友人で、もう20年の付き合いだ。
He is an old friend of mine; we've known each other for 20 years.
Literally 'friend of many years', this emphasizes the long duration of the friendship. It is natural and commonly used.
彼女は長年の友達で、何でも話せる。
She is a long-time friend; I can talk to her about anything.
Means 'close friend' or 'best friend'. It can imply a long-standing, deep friendship, but the focus is on closeness rather than duration.
Expressing 'old friend' in a casual, affectionate way, sometimes with a masculine or feminine nuance.
Similar to 古い友人 but more casual. It can be used for friends of any gender.
彼は古い友達だから、気を使わなくていい。
He's an old friend, so you don't have to be formal.
Slang for 'friend', derived from 友達 (tomodachi). Often used by young men. Can be combined with 昔 (mukashi) to mean 'old buddy'.
昔のダチと久しぶりに会った。
I met up with an old buddy for the first time in a while.
The English phrase 'old friend' can be ambiguous. In Japanese, you must distinguish between a friend from the past (昔の友達) and a friend of long standing (古い友人). Using the wrong one can cause confusion.
In casual conversation, Japanese speakers often omit explicit 'friend' words and instead use the person's name with appropriate context, especially if the friendship is already understood.
明日、太郎に会うんだ。昔からの友達なんだ。
I'm meeting Taro tomorrow. He's an old friend.
彼は私の親友で、子供の頃から知っている。
He is my close friend; I've known him since childhood.