Dictionary
ex•panse
Pronunciation: (ik-spans'), [key]—
n.
1. an uninterrupted space or area; a wide extent of anything:
an expanse of water.
2. something that is spread out, esp. over a relatively large area:
that great expanse, the sky.
3. expansion; extension:
the wide expanse of scientific knowledge. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.