American Heritage Dictionary
(3)
Century Dictionary
(7)
GNU Webster's 1913
(2)
WordNet
(3)
Elsewhere on the web
The Great Barrier Reef is the world's largest coral expanse, and like similar reefs worldwide is threatened by climate change and pollution.— European Tribune
The clouds float by in this vast expanse, and thoughts float by in this vast expanse, and experiences float by in this vast expanse.— Integral Options Cafe
It seemed at times as if the terrain was a kind of sea-like expanse, and all the retail boxes ghost ships drifting to oblivion.— Clusterfuck Nation by Jim Kunstler
This documentary on the South Pole concentrates as much on the stunning polar expanse, as it does on the quirky inhabitants who've migrated there.— deCOMPOSE

American Heritage Dictionary (1)
Century Dictionary (2)
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