What does 鏡 mean?
鏡 is a Japanese noun meaning “mirror” in English. It can also be translated as “barrel head, page added at the beginning of a document mentioning its purpose, date, author, etc., mirror-shaped mochi” depending on context. It is written as 鏡 in kanji, かがみ in hiragana, and kagami in romaji. This word is part of JLPT N4 vocabulary.
Example sentence
海は鏡のようになめらかだった。
The sea was as smooth as glass.