octagon
Octagon (noun) means a shape with eight straight sides and eight angles. Example: “The gazebo was built as a perfect octagon.”
How to use octagon
Learner’s notesIn plain EnglishAn eight-sided shape, or (capitalized) the eight-sided cage used in MMA.
Word forms
- Plural
- octagons
Fill the gap
Can you complete this real example?
The gazebo was built as a perfect _____.
Etymology
From Greek okto- ("eight") plus -gonon ("angled"), the same building blocks found in "pentagon" and "hexagon".