Definition

1. Adjective:
   • Having eight sides and eight angles: Describes a shape, object, or structure that is an octagon or has the form of an octagon.
   • Relating to an octagon: Pertaining to the characteristics or geometry of an eight-sided figure.

Usage Examples

• Adjective:
  • The courtyard had a beautiful octagonal fountain in the center.
  • The architect designed an octagonal tower for the new building.
  • The table was octagonal, allowing everyone to see each other easily.

Advanced Usage

• "Octagonal in shape": A common phrase used to explicitly describe the form of an object.
  • The plaza is octagonal in shape, with a statue at each corner.
• "Octagonal cross-section": Used in geometry and engineering to describe an object whose cross-section is an octagon.
  • The column had an octagonal cross-section, which was unusual for the period.

Variants and Related Words

• Octagon (n): A plane figure with eight straight sides and eight angles.
  • A stop sign is a red octagon.
• Octangular (adj): A less common synonym for octagonal, meaning having eight angles.
  • The chapel featured an octangular dome.

Synonyms

• Eight-sided: Having eight sides.
• Octangular: Having eight angles (a direct synonym, though less common).

Antonyms

• Circular: Shaped like a circle.
• Square: Having four equal sides and four right angles.
• Triangular: Having three sides and three angles.

Adjective

1. of or relating to or shaped like an octagon