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Heptagon in Irish (Heipteagán): Meaning, Pronunciation, Usage

The Irish for heptagon is heipteagán, a masculine noun (plural heipteagáin).
Updated October 2026Report a mistake

How to say “heptagon” in Irish

Irish:
heipteagán
English:
heptagon
Word type:
noun
Gender:
masculine, first declension
Pronunciation:
“HEP-tyuh-gawn”  /ˈhɛpʲtʲəɡɑːn/
Various forms
Plural:
heipteagáin (heptagons)
Genitive singular:
heipteagáin, an heipteagáin (e.g. taobhanna an heipteagáin, sides of the heptagon)
Genitive plural:
heipteagán, na heipteagán (e.g. uillinneacha na heipteagán, the angles of the heptagons)

What does “heipteagán” mean?

heptagon
A flat geometric shape with seven straight sides and seven angles.Also: seven-sided figure, seven-sided shape.

“Heipteagán” with the article

The plural of heptagon in Irish is heipteagáin. Here is heipteagán after the article (an t-alt), in the singular and the plural.

an heipteagán
the heptagon
No change after an
na heipteagáin
the heptagons
Plural: no change after na

“Heipteagán” in a sentence: Irish examples

Common Irish sentences using heipteagán, the Irish word for heptagon.

Tá seacht dtaobh ar heipteagán.
A heptagon has seven sides.
Tharraing an múinteoir heipteagán ar an gclár.
The teacher drew a heptagon on the board.
Tomhais uillinneacha an heipteagáin.
Measure the angles of the heptagon.
Is heipteagáin iad na boinn sin.
Those coins are heptagons.
Dhathaigh mé an heipteagán dearg.
I coloured the heptagon red.
Cé mhéad trasnán atá i heipteagán?
How many diagonals are in a heptagon?
Rinne mo dheartháir heipteagán as cárta.
My brother made a heptagon out of card.

Other nouns in Irish

More everyday Irish nouns to learn next.

Heptagon in Irish: frequently asked questions

What is the Irish for heptagon?

The Irish for heptagon is heipteagán (pronounced “HEP-tyuh-gawn”). It’s a masculine noun and the plural is heipteagáin.

How do you pronounce heipteagán in Irish?

Heipteagán is said like “HEP-tyuh-gawn” (IPA /ˈhɛpʲtʲəɡɑːn/).

What is the plural of heptagon in Irish?

The plural of heipteagán is heipteagáin; with the article, na heipteagáin means “the heptagons”. The genitive plural is heipteagán, as in uillinneacha na heipteagán (the angles of the heptagons).

How do the Irish names for polygons work?

Most follow the Greek pattern with the ending -agán: peinteagán (pentagon), heicseagán (hexagon), heipteagán (heptagon), ochtagán (octagon).

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