The definition of an expanse is the distance to which something can grow or expand, or a vast open surface.
(noun)See expanse in Webster's New World College Dictionary
noun
Origin: ME expans < L expansum, neut. pp. of expandere: see expand
See expanse in American Heritage Dictionary 4
noun
Origin:
Origin: Latin expānsum
Origin: , from
Origin: neuter past participle of expandere, to spread out; see expand
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