What does 二重 mean?
二重 is a Japanese noun meaning “double” or “twofold” in English. It is written as 二重 in kanji, にじゅう in hiragana, and nijuu in romaji. This word is part of JLPT N4 vocabulary.
Example sentences
窓が二重になっているので、冬も暖かいです。
The windows are double-glazed, so it's warm even in winter.
二重に払ってしまいました。
I ended up paying twice.