What does 沼 mean?
沼 is a Japanese noun meaning “swamp”, “bog” or “pond” in English. It can also be translated as “obsession”, “ugly man” or “retard” depending on context. It is written as 沼 in kanji, ぬま in hiragana, and numa in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
その沼にはサギがたくさん住んでいる。
Lots of herons live in the marsh.