noun
heptagon
HEP-tuh-gon
Heptagon (noun) means a shape with seven straight sides and seven angles. Example: “The coin was cut in the shape of a heptagon.”
noun
1
A shape with seven straight sides and seven angles.
"The coin was cut in the shape of a heptagon."
"The garden bed was laid out as a heptagon around the old oak tree."
"She traced a heptagon onto the card before cutting it out."
How to use heptagon
Learner’s notesIn plain EnglishA seven-sided shape.
When to use it
Heptagon is the standard geometry term; septagon is a less accepted variant.
Memory tip
Link hepta- to other seven-related words such as heptathlon to remember the number.
Trace the full origin ↓
Easily confused with
hexagon
heptathlon →
Common pairings
regular heptagon
irregular heptagon
heptagon shape
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The coin was cut in the shape of a _____.
Etymology
The word has been used in English since the sixteenth century. It comes from Ancient Greek, joining the word for seven with the word for angle, and can be broken down as hepta- plus -gon.
Synonyms
View more →
7-gon
septagon
Rhymes for heptagon
wagon
dragon
Aragon
nonagon
octagon
paragon
icosagon
pentagon
tarragon
dodecagon
bandwagon
pendragon
See all rhymes for heptagon →
Frequently asked questions
What is a heptagon?
It is a shape with seven sides and seven angles.
Is septagon another word for heptagon?
Yes, septagon is sometimes used to mean the same shape, though it is often considered a less correct form.
How many angles does a heptagon have?
A heptagon has seven angles, one at each corner where its seven sides meet.
What is the meaning of heptagon?
"heptagon" (noun) means a shape with seven straight sides and seven angles.
