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To recognize in Irish (aithin): Meaning, Conjugation, Examples

Other uses of ‘aithin’: know · distinguish · acknowledge

The Irish for to recognize is aithin; ag aithint is recognizing.
Updated October 2026Report a mistake

How to say “to recognize” in Irish

Irish:
aithin
English:
to recognize, know, distinguish, acknowledge
Word type:
verb, second-conjugation
Verbal noun:
aithint (ag aithint, recognizing)
Verbal adjective:
aitheanta
Pronunciation:
“AH-hin”  /ˈahənʲ/

What does “aithin” mean?

“Aithin” has four alternative meanings. The most common comes first.

to recognize
To know who or what someone or something is when you see or hear them.Also: know, identify.
3 other meanings: know or distinguish or acknowledge
2to know
To be acquainted with a person.Also: be acquainted with.
3to distinguish
To tell one thing from another.Also: tell apart, differentiate.
4to acknowledge
To accept or admit that something is true or valid.Also: recognize officially, admit.

“Aithin” in the different tenses

Every form follows An Caighdeán Oifigiúil.

Aimsir Chaite (Past)

PersonPositiveNegativeQuestion
mé (I)D'aithin méI recognizedNíor aithin méI did not recognizeAr aithin mé?Did I recognize?
tú (you)D'aithin túYou recognizedNíor aithin túYou did not recognizeAr aithin tú?Did you recognize?
sé / sí (he / she)D'aithin sé / síHe recognizedNíor aithin sé / síHe did not recognizeAr aithin sé / sí?Did he recognize?
sinn (we)D'aithníomarWe recognizedNíor aithníomarWe did not recognizeAr aithníomar?Did we recognize?
sibh (you, plural)D'aithin sibhYou recognizedNíor aithin sibhYou did not recognizeAr aithin sibh?Did you recognize?
siad (they)D'aithin siadThey recognizedNíor aithin siadThey did not recognizeAr aithin siad?Did they recognize?
saorbhriathar (autonomous)AithníodhNíor aithníodhAr aithníodh?

Aimsir Láithreach (Present)

PersonPositiveNegativeQuestion
mé (I)AithnímI recognizeNí aithnímI do not recognizeAn aithním?Do I recognize?
tú (you)Aithníonn túYou recognizeNí aithníonn túYou do not recognizeAn aithníonn tú?Do you recognize?
sé / sí (he / she)Aithníonn sé / síHe recognizesNí aithníonn sé / síHe does not recognizeAn aithníonn sé / sí?Does he recognize?
sinn (we)AithnímidWe recognizeNí aithnímidWe do not recognizeAn aithnímid?Do we recognize?
sibh (you, plural)Aithníonn sibhYou recognizeNí aithníonn sibhYou do not recognizeAn aithníonn sibh?Do you recognize?
siad (they)Aithníonn siadThey recognizeNí aithníonn siadThey do not recognizeAn aithníonn siad?Do they recognize?
saorbhriathar (autonomous)AithnítearNí aithnítearAn aithnítear?

Aimsir Fháistineach (Future)

PersonPositiveNegativeQuestion
mé (I)Aithneoidh méI will recognizeNí aithneoidh méI will not recognizeAn aithneoidh mé?Will I recognize?
tú (you)Aithneoidh túYou will recognizeNí aithneoidh túYou will not recognizeAn aithneoidh tú?Will you recognize?
sé / sí (he / she)Aithneoidh sé / síHe will recognizeNí aithneoidh sé / síHe will not recognizeAn aithneoidh sé / sí?Will he recognize?
sinn (we)AithneoimidWe will recognizeNí aithneoimidWe will not recognizeAn aithneoimid?Will we recognize?
sibh (you, plural)Aithneoidh sibhYou will recognizeNí aithneoidh sibhYou will not recognizeAn aithneoidh sibh?Will you recognize?
siad (they)Aithneoidh siadThey will recognizeNí aithneoidh siadThey will not recognizeAn aithneoidh siad?Will they recognize?
saorbhriathar (autonomous)AithneofarNí aithneofarAn aithneofar?

Modh Coinníollach (Conditional)

PersonPositiveNegativeQuestion
mé (I)D'aithneoinnI would recognizeNí aithneoinnI would not recognizeAn aithneoinn?Would I recognize?
tú (you)D'aithneofáYou would recognizeNí aithneofáYou would not recognizeAn aithneofá?Would you recognize?
sé / sí (he / she)D'aithneodh sé / síHe would recognizeNí aithneodh sé / síHe would not recognizeAn aithneodh sé / sí?Would he recognize?
sinn (we)D'aithneoimisWe would recognizeNí aithneoimisWe would not recognizeAn aithneoimis?Would we recognize?
sibh (you, plural)D'aithneodh sibhYou would recognizeNí aithneodh sibhYou would not recognizeAn aithneodh sibh?Would you recognize?
siad (they)D'aithneoidísThey would recognizeNí aithneoidísThey would not recognizeAn aithneoidís?Would they recognize?
saorbhriathar (autonomous)D'aithneofaíNí aithneofaíAn aithneofaí?

“Aithin” in a sentence: Irish examples

Past, present, future and conditional, with a negative and a question.

D'aithin mé í ar an bpointe.
I recognized her immediately.
Aithníonn an madra a ghuth.
The dog recognizes his voice.
Aithneoidh tú an teach nuair a fheicfidh tú é.
You will recognize the house when you see it.
D'aithneodh sí an t-amhrán sin áit ar bith.
She would recognize that song anywhere.
Níor aithin mé thú gan na spéaclaí.
I didn't recognize you without the glasses.
An aithníonn tú mé?
Do you recognize me?

Other verbs in Irish

More everyday Irish verbs to learn next.

To recognize in Irish: frequently asked questions

What is the Irish for to recognize?

The Irish for to recognize is aithin (pronounced “AH-hin”). It is a second-conjugation verb; the verbal noun is aithint.

What is the verbal noun of aithin?

The verbal noun of aithin is aithint, used after ag for the continuous: ag aithint (recognizing). The verbal adjective is aitheanta.

How do you say aithin in the past and the future?

Past: D'aithin mé; negative Níor aithin mé; question Ar aithin mé?. Future: Aithneoidh mé; negative Ní aithneoidh mé; question An aithneoidh mé?.

What is the modh coinníollach of aithin?

The conditional (modh coinníollach) first person is D'aithneoinn (I would recognize); negative Ní aithneoinn; question An aithneoinn?.

Does aithin have more than one meaning?

Yes. Aithin can mean to recognize, to know, to distinguish or to acknowledge, depending on context; the first is the most common.

What is the difference between 'aithin' and 'tuig'?

'Aithin' means to recognize or know a person or thing, as in 'D'aithin mé é', while 'tuig' means to understand, as in 'Tuigim thú'.

How do I say 'I could tell by him that he was tired'?

Use 'aithin ar': 'D'aithin mé air go raibh tuirse air.'

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