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/ˈɛ.niː.əˈdɛ.kə.ɡɑn/ · noun
(geometry) A polygon with nineteen sides and nineteen angles..
Use enneadecagon when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Enneadecagon means (geometry) A polygon with nineteen sides and nineteen angles..
Common synonyms include 19-gon, nonadecagon.
The opposite depends on the specific sense.
Use enneadecagon where its definition matches the intended context.
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