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Signature in Irish (Síniú): Meaning, Pronunciation, Usage

‘síniú’ also means: signing

The Irish for signature is síniú, a masculine noun (plural sínithe). Ag síniú is signing, from the verb sínigh.
Updated October 2026Report a mistake

How to say “signature” in Irish

Irish:
síniú
English:
signature, signing
Word type:
noun (verbal noun)
Verbal noun of:
sínigh, to sign (ag síniú, signing)
Gender:
masculine
Pronunciation:
“SHEEN-oo”  /ˈʃiːnʲuː/
Various forms
Plural:
sínithe (signatures)
Genitive singular:
sínithe, an tsínithe (e.g. dáta an tsínithe, date of the signing)
Genitive plural:
sínithe, na sínithe (e.g. bailiú na sínithe, the collection of signatures)

What does “síniú” mean?

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

signature
A person's name written in their own hand, for example on a document or letter.Also: autograph, signed name.
1 other meaning: signing
2signing
The act of signing something; it is the verbal noun of the verb sínigh.Also: signing of, sign.

“Síniú” as a verbal noun

After ag, síniú means signing: it is the verbal noun of the verb sínigh (to sign). A noun that follows it goes into the genitive.

agat
+
síniúverbal noun
=
ag síniúsigning

“Síniú” with the article

The plural of signature in Irish is sínithe. Here is síniú after the article (an t-alt), in the singular and the plural.

an síniú
the signature
No change after an
na sínithe
the signatures
Plural: no change after na

“Síniú” in a sentence: Irish examples

Common Irish sentences using síniú, the Irish word for signature.

Cuir do shíniú ag bun an leathanaigh, le do thoil.
Put your signature at the bottom of the page, please.
Ní féidir liom an síniú seo a léamh.
I can't read this signature.
Bailíodh míle síniú don achainí.
A thousand signatures were collected for the petition.
Tá na sínithe go léir ar an gconradh anois.
All the signatures are on the contract now.
Tá mo shíniú ar an seic sin.
My signature is on that cheque.
Bhí sé i láthair ag síniú an chonartha.
He was present at the signing of the treaty.
Tharla sé sin tar éis an tsínithe.
That happened after the signing.

Other nouns in Irish

More everyday Irish nouns to learn next.

Signature in Irish: frequently asked questions

What is the Irish for signature?

The Irish for signature is síniú (pronounced “SHEEN-oo”). It’s a masculine noun and the plural is sínithe. Depending on context it can also mean signing.

How do you pronounce síniú in Irish?

Síniú is said like “SHEEN-oo” (IPA /ˈʃiːnʲuː/).

What is the plural of signature in Irish?

The plural of síniú is sínithe; with the article, na sínithe means “the signatures”. The genitive plural is sínithe, as in bailiú na sínithe (the collection of signatures).

Does síniú have more than one meaning?

Yes. Síniú can mean signature or signing, depending on context; the first is the most common.

Why does síniú change to shíniú?

After words like mo (my) and do (your) the first letter is lenited: mo shíniú. After ár (our) it stays ár síniú, because s does not take eclipsis.

How do I say 'sign here' in Irish?

Say 'Sínigh anseo'. The noun for the signature itself is 'síniú', as in 'cuir do shíniú anseo'.

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