lake (in place names)
「湖」 has another reading with different meanings.
lake
琵琶湖は日本最大の湖だ。
Lake Biwa is the largest lake in Japan.
山中湖は富士山の近くにある。
Lake Yamanaka is near Mt. Fuji.
諏訪湖のほとりを散歩した。
I took a walk along the shore of Lake Suwa.