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Wednesday in Irish (Céadaoin): Meaning, Pronunciation, Usage

The Irish for Wednesday is Céadaoin, a feminine noun (plural Céadaoineacha).
Updated October 2026Report a mistake

How to say “Wednesday” in Irish

Irish:
Céadaoin
English:
Wednesday
Word type:
noun
Gender:
feminine, fourth declension
Pronunciation:
“KAY-deen”  /ˈceːdiːnʲ/
Various forms
Plural:
Céadaoineacha (Wednesdays)
Genitive singular:
Céadaoin, na Céadaoin (e.g. maidin Dé Céadaoin, Wednesday morning)
Genitive plural:
Céadaoineacha, na gCéadaoineacha (e.g. cruinnithe na gCéadaoineacha, the Wednesday meetings)

What does “Céadaoin” mean?

Wednesday
The day of the week between Tuesday and Thursday.Also: wed, midweek Day.

“Céadaoin” with the article

The plural of Wednesday in Irish is Céadaoineacha. Here is Céadaoin after the article (an t-alt), in the singular and the plural.

an Chéadaoin
the Wednesday
Lenition: C becomes Ch after an (feminine noun)
na Céadaoineacha
the Wednesdays
Plural: no change after na

“Céadaoin” in a sentence: Irish examples

Common Irish sentences using Céadaoin, the Irish word for Wednesday.

Téim ag snámh ar an gCéadaoin.
I go swimming on Wednesdays.
Feicfidh mé thú Dé Céadaoin.
I'll see you on Wednesday.
Is í an Chéadaoin an lá is gnóthaí agam.
Wednesday is my busiest day.
Bhí cruinniú againn maidin Dé Céadaoin.
We had a meeting on Wednesday morning.
Bíonn ceol sa teach tábhairne gach Céadaoin.
There's music in the pub every Wednesday.
Bíonn na Céadaoineacha an-chiúin san oifig.
Wednesdays are very quiet in the office.
Ní théim amach choíche Dé Céadaoin ná Déardaoin.
I never go out on a Wednesday or a Thursday.

Other nouns in Irish

More everyday Irish nouns to learn next.

Phrases with “Céadaoin”

Wednesday in Irish: frequently asked questions

What is the Irish for Wednesday?

The Irish for Wednesday is Céadaoin (pronounced “KAY-deen”). It’s a feminine noun and the plural is Céadaoineacha.

How do you pronounce Céadaoin in Irish?

Céadaoin is said like “KAY-deen” (IPA /ˈceːdiːnʲ/).

What is the plural of Wednesday in Irish?

The plural of Céadaoin is Céadaoineacha; with the article, na Céadaoineacha means “the Wednesdays”. The genitive plural is Céadaoineacha, as in cruinnithe na gCéadaoineacha (the Wednesday meetings).

Why does Céadaoin change to Chéadaoin or gCéadaoin?

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

When do I say 'Dé Céadaoin' and when 'an Chéadaoin'?

Use 'Dé Céadaoin' for 'on Wednesday' as a time adverb, and 'an Chéadaoin' when talking about the day as a noun, as in 'Is í an Chéadaoin an lá is fearr'.

What does the name mean?

'Céadaoin' comes from 'céad aoine', the first fast of the week, with 'Aoine' (Friday) being the main fast day.

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