HeyRua Get the app

Registration number in Irish (Cláruimhir): Meaning, Pronunciation, Usage

The Irish for registration number is cláruimhir, a feminine noun (plural cláruimhreacha).
Updated October 2026Report a mistake

How to say “registration number” in Irish

Irish:
cláruimhir
English:
registration number
Word type:
noun
Gender:
feminine, fifth declension
Pronunciation:
“KLAWR-iv-ir”  /ˈkl̪ˠaːɾˠˌɪvʲəɾʲ/
Various forms
Plural:
cláruimhreacha (registration numbers)
Genitive singular:
cláruimhreach, na cláruimhreach (e.g. digití na cláruimhreach, the digits of the registration number)
Genitive plural:
cláruimhreacha, na gcláruimhreacha (e.g. clár na gcláruimhreacha, the register of registration numbers)

What does “cláruimhir” mean?

registration number
A number assigned when something is officially registered, especially the number on a vehicle's number plate.Also: reg number, licence plate number, registered number.

“Cláruimhir” with the article

The plural of registration number in Irish is cláruimhreacha. Here is cláruimhir after the article (an t-alt), in the singular and the plural.

an chláruimhir
the registration number
Lenition: c becomes ch after an (feminine noun)
na cláruimhreacha
the registration numbers
Plural: no change after na

“Cláruimhir” in a sentence: Irish examples

Common Irish sentences using cláruimhir, the Irish word for registration number.

Cad é cláruimhir do chairr?
What is your car's registration number?
Thug an finné an chláruimhir do na gardaí.
The witness gave the registration number to the guards.
Níor thug mé faoi deara an chláruimhir.
I didn't notice the registration number.
Scríobh síos cláruimhir an chairr sin.
Write down that car's registration number.
Tá na cláruimhreacha nua ag tosú le 25.
The new registration numbers begin with 25.
Cuir do chláruimhir ar an bhfoirm, le do thoil.
Put your registration number on the form, please.
Tá botún i gcláruimhir na cuideachta.
There is a mistake in the company's registration number.

Other nouns in Irish

More everyday Irish nouns to learn next.

Registration number in Irish: frequently asked questions

What is the Irish for registration number?

The Irish for registration number is cláruimhir (pronounced “KLAWR-iv-ir”). It’s a feminine noun and the plural is cláruimhreacha.

How do you pronounce cláruimhir in Irish?

Cláruimhir is said like “KLAWR-iv-ir” (IPA /ˈkl̪ˠaːɾˠˌɪvʲəɾʲ/).

What is the plural of registration number in Irish?

The plural of cláruimhir is cláruimhreacha; with the article, na cláruimhreacha means “the registration numbers”. The genitive plural is cláruimhreacha, as in clár na gcláruimhreacha (the register of registration numbers).

Why does cláruimhir change to chláruimhir or gcláruimhir?

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

How is 'cláruimhir' formed?

It combines 'clár' (register) and 'uimhir' (number), so it literally means 'register number'.

Learn Irish by
actually speaking it

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

7-day free trial. Cancel anytime.

The HeyRua app home screen