Translation guide
The English word "familiar" covers several distinct meanings: knowing something well, being on close terms with someone, and something being well-known or easily recognized. Japanese expresses these with different words and patterns.
To express that you know a topic, place, or thing well through experience.
Means having detailed knowledge about something. Used with the particle に.
彼は日本の歴史に詳しい。
He is familiar with Japanese history.
More formal, implies deep expertise or thorough familiarity.
彼女は国際法に精通している。
She is familiar with international law.
Literally "know well," a straightforward way to say you are familiar with something.
この辺りをよく知っていますか？
Are you familiar with this area?
To describe a relationship where you are friendly and casual with someone.
Describes a close, friendly relationship. Often used for friends.
彼とは親しい間柄です。
I am on familiar terms with him.
Means to get along well, be on good terms. Very common in casual speech.
私たちはとても仲がいいです。
We are very familiar with each other.
Implies a relationship where you can relax and be yourself without formality.
To say that something is commonly known or seen, not strange or new.
Means 'familiar' in the sense of 'well-known and often encountered'. Used as a pre-noun adjective.
これはおなじみの曲です。
This is a familiar tune.
Literally 'seen and accustomed to', used for visual familiarity.
見慣れた風景
a familiar landscape
Used for sounds or voices you are accustomed to hearing.
聞き慣れた声がした。
I heard a familiar voice.
A straightforward phrase meaning 'well-known'.
その話はよく知られている。
That story is familiar.
To describe behavior that is too casual or forward, often with a negative nuance.
Describes someone acting overly familiar in a way that is annoying or inappropriate.
彼のなれなれしい態度が嫌だ。
I dislike his familiar attitude.
Both mean 'close' or 'familiar', but 親しい is slightly more formal and can describe a one-sided feeling (I feel close to him), while 仲がいい implies a mutual good relationship. 仲がいい is more common in everyday speech.
彼は親しい友達です。
He is a close (familiar) friend.
あの二人は仲がいいね。
Those two are close, aren't they?
The katakana word ファミリア (famiria) exists but is not commonly used for 'familiar'. It might be understood in some contexts (like brand names), but it's not a natural translation. Stick to the Japanese options above.
このソフトに詳しいですか？
Are you familiar with this software?
彼は気安い友達だ。
He is a familiar friend (easy to be around).
Means impudent or shameless, often implying taking liberties due to assumed familiarity.
図々しいお願いですが、
This may be a familiar request, but...