ISEE/SSAT Vocabulary Builder›Words›N›nonagon
ISEE/SSATmedium
nonagon
a flat shape with nine straight sides and nine angles
Synonyms
- enneagon
- 9-gon
nonagon in a sentence
The city plaza was paved in the shape of a nonagon, with nine matching benches around its edge.
The coin designer chose a nonagon instead of a circle so the new currency would feel distinct in people's pockets.
Where it comes from
From Latin nonus 'ninth' + Greek gonia 'angle'
Memory hook
NONA (nine) + GON (angle) — nine angles, nine sides.
Word parts
- nona — nine
nonagon: nona (nine) + gon (angle)
Read it in context
- Inside the Sound Arts