An architectural structure, particularly a temple, with nine columns across the front or a nine-columned design.
From Greek 'ennea' (nine) + 'stylos' (column), with '-style' as a common English architectural suffix. The term describes a specific architectural classification used in classical building description.
Architects named building styles by counting columns ('hexastyle' = 6, 'heptastyle' = 7, 'octastyle' = 8), and while 'enneastyle' structures are theoretically possible, no famous surviving Greek or Roman temples use this design—making it a word for something that never really happened at scale.
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