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Square in Irish (cearnógach): Meaning, Forms, Examples

The Irish for square is cearnógach: bosca cearnógach, a square box.
Updated October 2026Report a mistake

How to say “square” in Irish

Irish:
cearnógach
English:
square
Word type:
adjective
Squarer:
níos cearnógaí
Squarest:
is cearnógaí
Plural:
cearnógacha
Pronunciation:
“KYAR-noe-gukh”  /ˈcaːɾˠnˠoːɡəx/

What does “cearnógach” mean?

square
Having four equal sides and four right angles, shaped like a square.Also: squared, square-shaped, quadrate.

Other Irish adjectives for square: cearnach (square)

“Cearnógach” after a noun

An Irish adjective comes after its noun. Here is cearnógach after bosca (box, masculine), after fuinneog (window, feminine) and after a plural.

after a masculine nounbosca cearnógacha square box
after a feminine nounfuinneog chearnógacha square window
after a plural nounboscaí cearnógachasquare boxes

séimhiú (the h) the ending

feminine
fuinneogwindow
+
cearnógachsquare
=
fuinneog chearnógacha square window

After a feminine noun the adjective gets a séimhiú, an h after its first letter: fuinneog chearnógach. After a masculine noun it stays as it is: bosca cearnógach.

plural
boscaíboxes
+
cearnógachasquare, plural
=
boscaí cearnógachasquare boxes

With a plural noun the adjective takes its plural form, cearnógacha. It also gets an h after a plural that ends in a slender consonant; after other plurals it does not: fuinneoga cearnógacha.

Squarer, squarest, very square

níosmore
+
cearnógaísquare
=
níos cearnógaísquarer
ismost
+
cearnógaísquare
=
is cearnógaísquarest
squarerníos cearnógaíin the past tense: ní ba chearnógaí
squarestis cearnógaíin the past tense: ba chearnógaí
as square aschomh cearnógach leno change after chomh
very squarean-chearnógachan- lenites, except d, t and s
too squareróchearnógachró- lenites

“Cearnógach” in a sentence: Irish examples

With a masculine noun, a feminine noun, a plural, a comparison and on its own.

Cheannaigh mé bosca cearnógach don bhronntanas.
I bought a square box for the present.
Tá fuinneog chearnógach sa seomra codlata.
There is a square window in the bedroom.
Gearr an páipéar ina phíosaí cearnógacha.
Cut the paper into square pieces.
Tá an pictiúr cearnógach.
The picture is square.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Square in Irish: frequently asked questions

What is the Irish for square?

The Irish for square is cearnógach (pronounced “KYAR-noe-gukh”). It comes after the noun: bosca cearnógach, a square box; fuinneog chearnógach, a square window.

How do you say squarer and squarest in Irish?

níos cearnógaí is squarer and is cearnógaí is squarest. In the past tense they become ní ba chearnógaí and ba chearnógaí.

Why does cearnógach become chearnógach?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So fuinneog chearnógach (a square window) but bosca cearnógach (a square box), because bosca is masculine.

What is the plural of cearnógach?

With a plural noun cearnógach becomes cearnógacha: boscaí cearnógacha, fuinneoga cearnógacha.

How do you say very square in Irish?

an-chearnógach. Too square is róchearnógach, and as square as is chomh cearnógach le.

What is the difference between 'cearnógach' and 'cearnach'?

Both can mean square, but 'cearnógach' is the usual everyday word for square-shaped, from 'cearnóg' (a square). 'Cearnach' is found more in technical terms such as 'méadar cearnach' (square metre).

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