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Hammer in Irish (Casúr): Meaning, Pronunciation, Usage

The Irish for hammer is casúr, a masculine noun (plural casúir).
Updated October 2026Report a mistake

How to say “hammer” in Irish

Irish:
casúr
English:
hammer
Word type:
noun
Gender:
masculine, first declension
Pronunciation:
“KAS-oor”  /ˈkasˠuːɾˠ/
Various forms
Plural:
casúir (hammers)
Genitive singular:
casúir, an chasúir (e.g. cloigeann an chasúir, the head of the hammer)
Genitive plural:
casúr, na gcasúr (e.g. cloigne na gcasúr, the heads of the hammers)

What does “casúr” mean?

hammer
A tool with a heavy head on a handle, used for hitting nails or breaking things.Also: mallet, sledgehammer.

“Casúr” with the article

The plural of hammer in Irish is casúir. Here is casúr after the article (an t-alt), in the singular and the plural.

an casúr
the hammer
No change after an
na casúir
the hammers
Plural: no change after na

“Casúr” in a sentence: Irish examples

Common Irish sentences using casúr, the Irish word for hammer.

Tabhair dom an casúr, le do thoil.
Give me the hammer, please.
Bhuail sé an tairne le casúr.
He hit the nail with a hammer.
Cá bhfuil mo chasúr?
Where is my hammer?
Tá an casúr sa bhosca uirlisí.
The hammer is in the toolbox.
Bhris cos an chasúir inné.
The hammer's handle broke yesterday.
Díolann an siopa sin casúir mhaithe.
That shop sells good hammers.
Ghortaigh mé mo mhéar leis an gcasúr.
I hurt my finger with the hammer.

Other nouns in Irish

More everyday Irish nouns to learn next.

Hammer in Irish: frequently asked questions

What is the Irish for hammer?

The Irish for hammer is casúr (pronounced “KAS-oor”). It’s a masculine noun and the plural is casúir.

How do you pronounce casúr in Irish?

Casúr is said like “KAS-oor” (IPA /ˈkasˠuːɾˠ/).

What is the plural of hammer in Irish?

The plural of casúr is casúir; with the article, na casúir means “the hammers”. The genitive plural is casúr, as in cloigne na gcasúr (the heads of the hammers).

Why does casúr change to chasúr or gcasúr?

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

What is the difference between casúr and ord?

A casúr is an ordinary hammer, while an ord is a sledgehammer, a big heavy hammer used with two hands.

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