Bog
Swamp
noun, suffix
The kanji and the word are exactly the same. That means they share meanings as well.
Note that, unlike English, which differentiates between different types of wetlands like marshes, swamps, or bogs, Japanese 沼 refers to any pond-like areas with muddy, murky water.
The reading is the one you learned with the kanji, ぬま.
沼のほとり
along the edge of the bog
沼の水
swamp water
沼の底
the bottom of the swamp
池や沼
ponds and swamps
沼に入る
to enter the bog
沼に落ちる
to fall into the bog
沼に住んでいる
to live in the swamp
沼がある
there is a swamp
沼が見える
can see the swamp
沼が広がる
the swamp spreads
この沼
this swamp
大きな沼
a large swamp
小さな沼
a small swamp
沼をうめ立てる
to fill in a swamp
沼を見る
to look at the swamp
沼を渡る
to cross the swamp
沼のほとりにテントを張った。
I pitched a tent along the edge of the bog.
沼に入ってはいけないよ。沼に落ちると大変だからね。
Don't go into the bog. It's dangerous if you fall into it.
沼の底にはたくさんの生き物がいるんだよ。
Many creatures live at the bottom of the bog.
どっちにしろ沼に飛び込まなきゃいけないと思うしね。
I guess I have to jump into the swamp anyway.