Katherine Squier ambiance am⋅bi⋅ance [am-bee-uhns] –noun 1. the mood, character, quality, tone, atmosphere, etc., particularly of an environment or milieu: The restaurant had a delightful ambiance. 2. that which surrounds or encompasses; environment. a home a b c d e f g h i j k l m n o p q r s t u v w x y z altitude ambiance antique anonymous antler apocalyptic alligator alone altered apple-juice arm art as-az