Irish, or Gaeilge, is the official language of Ireland. Irish is one of the three modern Goidelic languages; the other two are Scottish Gaelic (Gàidhlig) and Manx (Gaelg). 

Here are some popular Irish phrases and words along with their pronunciation.

How to say thank you in Irish:
Go raibh maith agat, literally, "may good be at you."
Pronunciation: guh rev mah a-gut

How to say you're welcome in Irish:
Tá fáilte romhat.
Pronunciation: taw FAWL-cheh ROH-ut

How to say thank you to multiple people in Irish:
Go Raibh Maith Agaibh
Pronunciation: guh rev mah a-giv

How to say police officer in Irish for the Republic of Ireland:
Garda, plural gardaí, short for garda síochána, literally, guardian of the peace. 

How to say, Happy St. Patrick's Day to you! in Irish:
Lá fhéile Pádraig sona dhuit!
Pronunciation: lah leh PAH-drig SUN-uh gwitch


How to say, St. Patrick’s Day blessings to you! in Irish:
Beannachtaí na Féile Pádraig dhuit!
Pronunciation: BAN-ukh-tee nuh FAY-leh PAH-drig gwitch.

How to say the traditional drinking toast in Irish:
Sláinte!
This toast essentially is the same as saying cheers, but more literally translates to heath.
Pronunciation: slawn-cheh.
 
How to say, Ireland Forever! in Irish:
Éire go Brách!
Pronunciation: Ay-reh guh brawkh.
 
How to ask, Where will you be wetting the shamrock? in Irish:
Cá mbeidh tú ag fliuchadh na seamróige?
To wet the shamrock means to go for a drink.
Pronunciation: Caw meg too egg flyuh-ka nah sham-roh-ih-geh.
 
How to say, A pint of Guinness, please. in Irish:
Píonta Guinness, le do thoil.
Pronunciation: Pyun-tah Guinness, leh duh huh-il.

How to say whiskey in Irish:
Uisce beatha
Literally means, water of life.
Pronunciation: ish-keh byah-ha.

How to say shamrock in Irish:
Seamróg.
Means little clover or young clover.
Pronunciation: sham-rogue.

How to say, The luck of the Irish. in Irish:
Ádh na nÉireannach.
Pronunciation: Awe nah Nay-ron-okh.
 
How to say, Kiss my arse. in Irish:
Póg mo thóin.
Pronunciation: pog ma hon.
 
How to say in Irish, Kiss me, I'm Irish!
Tabhair póg dom, táim Éireannach!
Pronunciation: Tower pogue dum, toim Aye-ron-okh.

How to say welcome in Irish:
Fáilte.
Pronunciation: fawl-cha.
 
How to say hello in Irish:
Dia dhuit.
Literally means, God be with you.
Pronunciation: dia duitch.

How to ask in Irish, How are you?
Conas a tá tú?
Pronunciation: cone-us aw tah too?

How to say goodbye in Irish:
Slán leat.
Literally means, health or safety with you.
Pronunciation: slawn lat


How to ask, Are you crazy? in Irish:
An bhfuil tú ceart go leor í do ceann?
Literally means, Are you alright in the head?"
Pronunciation: An wheel tu cart go lore ee ju cown.

How to say a fun or entertaining time in Irish:
Craic
Pronunciation: crack

How to ask, Could you say that in English please? in Irish:
As Béarla led thoil?
Pronunciation: oss bayr-lah ledh hell?
 
How to say, Please speak a little more slowly. in Irish:
Níos moille led thoil
Pronunciation: kneess mwell-eh ledh hell.

How to ask, Could you repeat that? in Irish:
Arís?
Literally, again?
Pronunciation: ah-reesh?
 
How to say, I don't understand you. in Irish:
Ní thuigim thú.
Pronunciation: knee hig-im hoo.
 
How to say, I don't speak Irish. in Irish:
Níl Gaeilge agam.
literally, I don't have Irish.
Pronunciation: kneel gway-il-geh ah-gum.