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Furrow in Irish (Clas): Meaning, Pronunciation, Usage

‘clas’ also means: channel

The Irish for furrow is clas, a feminine noun (plural clasa).
Updated October 2026Report a mistake

How to say “furrow” in Irish

Irish:
clas
English:
furrow, channel
Word type:
noun
Gender:
feminine
Pronunciation:
“klas”  /kl̪ˠasˠ/
Various forms
Plural:
clasa (furrows)
Genitive singular:
claise, na claise (e.g. bun na claise, the bottom of the furrow)
Genitive plural:
clas, na gclas (e.g. díreacht na gclas, the straightness of the furrows)

What does “clas” mean?

“Clas” has two alternative meanings. The most common comes first.

furrow
A long narrow groove or trench in the ground, such as one made by a plough or between ridges.Also: trench, groove, ditch.
1 other meaning: channel
2channel
A narrow channel or gully through which water runs.Also: gully, drain, trough.

“Clas” with the article

The plural of furrow in Irish is clasa. Here is clas after the article (an t-alt), in the singular and the plural.

an chlas
the furrow
Lenition: c becomes ch after an (feminine noun)
na clasa
the furrows
Plural: no change after na

“Clas” in a sentence: Irish examples

Common Irish sentences using clas, the Irish word for furrow.

Rinne an céachta clas dhíreach sa ghort.
The plough made a straight furrow in the field.
Tá uisce ina sheasamh sa chlas.
There is water lying in the furrow.
Shiúil sé síos an chlas go mall.
He walked slowly down the furrow.
Bhí na clasa lán d'uisce tar éis na báistí.
The furrows were full of water after the rain.
Thit mo hata isteach i gclas.
My hat fell into a furrow.
Chuir sí na prátaí ar imeall na claise.
She put the potatoes at the edge of the furrow.
Ghlan siad na clasa sa gharraí inné.
They cleaned out the furrows in the garden yesterday.

Other nouns in Irish

More everyday Irish nouns to learn next.

Furrow in Irish: frequently asked questions

What is the Irish for furrow?

The Irish for furrow is clas (pronounced “klas”). It’s a feminine noun and the plural is clasa. Depending on context it can also mean channel.

How do you pronounce clas in Irish?

Clas is said like “klas” (IPA /kl̪ˠasˠ/).

What is the plural of furrow in Irish?

The plural of clas is clasa; with the article, na clasa means “the furrows”. The genitive plural is clas, as in díreacht na gclas (the straightness of the furrows).

Does clas have more than one meaning?

Yes. Clas can mean furrow or channel, depending on context; the first is the most common.

Why does clas change to chlas or gclas?

Irish changes the start of some words after certain words. After mo (my) clas becomes mo chlas (lenition), and after ár (our) or i (in) it becomes ár gclas (eclipsis).

What is the difference between 'clas' and 'iomaire'?

An 'iomaire' is the raised ridge in a field, while a 'clas' is the furrow or hollow between ridges.

Does 'clas' mean a school class?

No, a school class is 'rang'; 'clas' means a furrow or channel in the ground.

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