Last Updated：2025/11/20

Any of numerous marine plants and algae, such as a kelp. / (by extension) Any of various fresh water plants and algae.

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seaweed

Source Word

seaweed

Noun

uncountable usually broadly

Japanese Meaning

海藻：海に生息する植物や藻類の総称。例えば、昆布などの大型褐藻類が含まれる。 / 淡水藻：転じて、淡水に生息する植物や藻類の総称としても用いられる。

The children collected smooth shells and a dark strand of seaweed along the shoreline.

子供たちは海辺で滑らかな貝殻と暗い一筋の海藻を集めた。

Sense（1）

Any of numerous marine plants and algae, such as a kelp.

Sense（2）

(by extension) Any of various fresh water plants and algae.

With light penetrating to the lake bottom, beds of seaweed flourished where little had grown before.

seaweeds

（ plural ）