eight-sided

Thân thiện

An octagon is an eight-sided shape often seen on stop signs.

Definition

1. Adjective:
   • Having eight sides: The word "eight-sided" describes any object, shape, or figure that possesses exactly eight straight edges or boundaries. It is a geometric descriptor.

Usage

• The word "eight-sided" is used attributively, meaning it typically comes before a noun to describe it.
• It is a compound adjective formed from the number "eight" and the adjective "sided."

Examples

• Adjective:
  • The stop sign is an eight-sided polygon, known as an octagon.
  • We found an unusual, eight-sided coin from the 17th century.
  • The architect designed an eight-sided tower for the castle.

Advanced Usage

• Technical/Geometric Context: Commonly used in mathematics, geometry, design, and architecture to specify the number of sides of a polygon or structure.
  • The gazebo features an eight-sided base, providing a unique panoramic view.

Variants and Related Words

• Octagon (n): The specific geometric term for a flat, two-dimensional shape with eight sides and eight angles.
  • A regular octagon has eight equal sides and angles.
• Octagonal (adj): The more common adjective meaning "having the form of an octagon" or "eight-sided."
  • The room was octagonal in shape.

Synonyms

• Octagonal: Having eight sides and eight angles. (Note: "Octagonal" is the standard synonym, while "eight-sided" is a more descriptive, plain-language equivalent.)

Antonyms

• There is no direct single-word antonym. Opposites would be descriptive phrases like "having fewer than eight sides" or "having more than eight sides." Specific antonyms for common polygons include: four-sided (quadrilateral), three-sided (triangular), many-sided (polygonal).

Học thuật

Adjective

1. having eight sides