A suffix attached to the name of a lake, e.g., 琵琶湖 (Lake Biwa). Not used as a standalone word for 'lake' (use 湖 みずうみ).
Lake Biwa is the largest lake in Japan.
I took a walk along the shore of Lake Suwa.
lake; lake water
lake surface
lakes and marshes; inland waters
north of a lake; north of Lake Biwa
on the lake
lake bottom; bottom of a lake
underground lake; subterranean lake
lakeshore; lakeside
artificial lake; man-made lake; reservoir
salt lake; saline lake
the public; the world; society · rivers and lakes · secluded place; hermitage
Zen disciples; Zen practitioners
marshes and lakes
freshwater lake
lake inlet; mouth of a lake
center of a lake; middle of a lake
lake wind; lake breeze
lagoon
lagoon (inside a coral reef); barrier lagoon
Suffix used in lake names; the kanji is standard.
The kanji 湖 means 'lake'. The reading こ is the on'yomi and is used in compound words and place names.