HeyRua Get the app

Centimetre in Irish (Ceintiméadar): Meaning, Pronunciation, Usage

The Irish for centimetre is ceintiméadar, a masculine noun (plural ceintiméadair).
Updated October 2026Report a mistake

How to say “centimetre” in Irish

Irish:
ceintiméadar
English:
centimetre
Word type:
noun
Gender:
masculine, first declension
Pronunciation:
“KEN-tyuh-may-dur”  /ˈcɛnʲtʲəˌmʲeːd̪ˠəɾˠ/
Various forms
Plural:
ceintiméadair (centimetres)
Genitive singular:
ceintiméadair, an cheintiméadair (e.g. fad ceintiméadair, the length of a centimetre)
Genitive plural:
ceintiméadar, na gceintiméadar (e.g. fad deich gceintiméadar, a length of ten centimetres)

What does “ceintiméadar” mean?

centimetre
A unit of length equal to one hundredth of a metre.Also: centimeter, cm.

“Ceintiméadar” with the article

The plural of centimetre in Irish is ceintiméadair. Here is ceintiméadar after the article (an t-alt), in the singular and the plural.

an ceintiméadar
the centimetre
No change after an
na ceintiméadair
the centimetres
Plural: no change after na

“Ceintiméadar” in a sentence: Irish examples

Common Irish sentences using ceintiméadar, the Irish word for centimetre.

Tá an líne seo ceintiméadar ar fad.
This line is one centimetre long.
D'fhás sé cúig cheintiméadar i mbliana.
He grew five centimetres this year.
Tomhais an bosca i gceintiméadair.
Measure the box in centimetres.
Tá céad ceintiméadar i méadar amháin.
There are a hundred centimetres in one metre.
Cé mhéad ceintiméadar atá ar an rialóir sin?
How many centimetres are on that ruler?
Tá ceintiméadar níos lú ná orlach.
A centimetre is smaller than an inch.
Gearr ceintiméadar eile den téad.
Cut another centimetre off the rope.

Other nouns in Irish

More everyday Irish nouns to learn next.

Centimetre in Irish: frequently asked questions

What is the Irish for centimetre?

The Irish for centimetre is ceintiméadar (pronounced “KEN-tyuh-may-dur”). It’s a masculine noun and the plural is ceintiméadair.

How do you pronounce ceintiméadar in Irish?

Ceintiméadar is said like “KEN-tyuh-may-dur” (IPA /ˈcɛnʲtʲəˌmʲeːd̪ˠəɾˠ/).

What is the plural of centimetre in Irish?

The plural of ceintiméadar is ceintiméadair; with the article, na ceintiméadair means “the centimetres”. The genitive plural is ceintiméadar, as in fad deich gceintiméadar (a length of ten centimetres).

Why does ceintiméadar change to cheintiméadar or gceintiméadar?

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

How do I write the abbreviation for 'ceintiméadar'?

The standard abbreviation is cm, the same as in English, e.g. 5 cm = cúig cheintiméadar.

Why is it 'cúig cheintiméadar' and not 'cúig cheintiméadair'?

After the numbers two to ten Irish uses the singular form of the noun, so you say dhá cheintiméadar and deich gceintiméadar.

Learn Irish by
actually speaking it

Learn everyday Irish words like ceintiméadar through guided conversation with Rua.

7-day free trial. Cancel anytime.

The HeyRua app home screen