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Irish Alphabet and Pronunciation

The Irish Alphabet

The modern Irish alphabet, or an aibítir, looks familiar. It uses the same Latin script as English, but traditionally, it only uses 18 letters: a, b, c, d, e, f, g, h, i, l, m, n, o, p, r, s, t, u.

The letters j, k, q, v, w, x, y, and z are found only in newer loanwords, like veist (vest) or (zoo).

Vowels and the Fada

Irish has the same five vowels as English: a, e, i, o, u. However, they are grouped into two categories that are crucial for pronunciation:

  • Broad vowels: a, o, u
  • Slender vowels: e, i

This distinction doesn't just change the vowel sound; it affects the consonants around them, too. We'll get to that in a moment.

You'll often see a diagonal accent mark over a vowel, like in the word fáilte (welcome). This is called a síneadh fada, or just fada for short. It means "long accent," and it does exactly that: it makes the vowel sound longer.

A vowel with a fada is a long vowel, and one without it is a short vowel.

Lesson image
VowelPronunciationExample WordMeaning
alike the 'a' in 'cat'catcat
álike the 'aw' in 'saw'bádboat
elike the 'e' in 'bet'lewith
élike the 'ay' in 'say'féargrass
ilike the 'i' in 'kit'uiscewater
ílike the 'ee' in 'see'she
olike the 'o' in 'son'potapot
ólike the 'o' in 'go'cow
ulike the 'u' in 'put'uiscewater
úlike the 'oo' in 'pool'you

Broad and Slender Consonants

Here's where Irish pronunciation gets interesting. Every consonant has two different sounds: a "broad" sound and a "slender" sound. You don't have to memorize two versions of each letter. Instead, you just follow one simple rule: caol le caol agus leathan le leathan (slender with slender and broad with broad).

This means the vowels on either side of a consonant tell you how to pronounce it.

  • If a consonant is next to a broad vowel (a, o, u), it has a broad sound. This is generally a 'harder' sound, pronounced further back in the mouth.
  • If it's next to a slender vowel (e, i), it has a slender sound. This is a 'softer' sound, often with a slight 'y' quality to it, pronounced closer to the front of the mouth.

Look at the letter 'b' in two words:

(cow): The 'o' is broad, so the 'b' is a hard sound, similar to English. beo (alive): The 'e' is slender, so the 'b' is softened, sounding almost like 'byo'.

Common Combinations

Often, you'll see a consonant followed by an 'h'. This combination, called lenition, completely changes the sound of the original consonant. The broad and slender rule still applies here, making these sounds dynamic.

ComboBroad SoundSlender Sound
bh'w' sound (like cow)'v' sound (like vest)
mh'w' sound (like cow)'v' sound (like vest)
chthroaty 'h' (like loch)'h' sound (like hue)
dh'gh' sound (like Ugh!)'y' sound (like yes)
gh'gh' sound (like Ugh!)'y' sound (like yes)
fhsilentsilent
ph'f' sound (like phone)'f' sound (like phone)
sh'h' sound (like hat)'h' sound (like hat)
th'h' sound (like hat)'h' sound (like hat)

For example, the word mo means "my." When you put it before bád (boat), it becomes mo bhád. The 'bh' is next to the broad vowel 'á', so it makes a 'w' sound: "muh wahd."

Ready to check your understanding?

Quiz Questions 1/5

How many letters are in the traditional modern Irish alphabet?

Quiz Questions 2/5

Which of the following groups contains only "broad" vowels?

Getting these basic rules down is a huge step. With practice, they'll start to feel natural.