A wide and open area, as of land, sky, or water
There is a wide expanse of sandy shore, and bathing is excellent.
The promenade of Hamilton Terrace commands a fine view of the broad expanse of the Haven with its various towns and forts.
there is a wide expanse of marsh, when at its ~ ~ highest the lake covers ~ ~
These poljes may be described as oases in what is otherwise a desert expanse of mountains.
in expanse, and forms one of the most noisome and injurious of insect pests.