難関（なんかん、nankaん）
- barrier

The Japanese word 難関 (pronounced *nankan*) means a "difficult hurdle," "challenge," "barrier," or "tough spot." It refers to a difficult or challenging situation, obstacle, or test that one must overcome. The term often implies a high level of difficulty or competition. It is often associated with exams, entrance requirements, or competitive situations.

⚫︎難関大学 Translation: Prestigious university/Difficult university ⚫︎入試の難関を突破する Translation: To overcome the difficult hurdle of entrance exams ⚫︎彼はその難関を乗り越えた Translation: He overcame that difficult challenge.

This word is appropriate for describing various kinds of difficult situations. It can be used in both formal and informal contexts, although it may lean slightly towards a more formal tone. It's common to use 難関 when talking about competitive situations, such as university entrance exams, job interviews, sports competitions, or business challenges. You might use it to express that something is very difficult to achieve or to emphasize the importance of succeeding in a particular endeavor.

難関 is typically written using kanji and hiragana. The kanji 難 (nan) means "difficult" or "hard," and 関 (kan) means "barrier," "pass," or "checkpoint." The word is always written with these two kanji. The okurigana (hiragana suffixes) is not used.

⚫︎困難（konnan): Difficulty, hardship ⚫︎障害（shōgai): Obstacle, impediment ⚫︎壁（kabe): Wall, barrier, obstacle ⚫︎試練（shiren): Trial, ordeal, test ⚫︎ハードル（hādoru): Hurdle

⚫︎易しい（yasashii): Easy, simple ⚫︎簡単（kantan): Simple, easy ⚫︎容易（yōi): Easy, simple

彼は難関の国家試験に合格した。 ・Translation: He passed the difficult national examination. ・Explanation: This sentence highlights the challenge (the national examination) and the success of overcoming it.

あの会社に入るには、かなりの難関を突破しなければならない。 ・Translation: To get into that company, you have to overcome a considerable hurdle. ・Explanation: The sentence emphasizes the difficulty associated with gaining employment at the company.

The word 難関 is a compound word composed of two kanji. The first, 難, originally meant "hard to catch" or "difficult." The second, 関, refers to a “gate” or "pass," and it carries the meaning of a barrier or control point. Combined, they create the meaning of a "difficult passage" or a "difficult barrier to overcome."