The definition of a foyer is an entry hall or open area.
(noun)See foyer in Webster's New World College Dictionary
noun
Origin: Fr, lobby, greenroom, lit., hearth < ML focarium < focarius, of the hearth < L focus, hearth: see focus
See foyer in American Heritage Dictionary 4
noun
Origin:
Origin: French, social center
Origin: , from Old French foier, fireplace
Origin: , from Vulgar Latin *focārium
Origin: , from Late Latin
Origin: , neuter of focārius, of the hearth (unattested sense)
Origin: , from Latin focus, fire
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