Irish Gaelic Alphabet at a Glance

  • 18 letters: 5 vowels and 13 consonants
  • Spoken by 1.87 million people in Ireland (40% of population aged 3+) [1]
  • First official language of Ireland [1]
  • Member of the Goidelic branch of Celtic languages [2]
  • Uses Latin script with fada (acute accent) marks [3]
  • Features distinctive lenition (séimhiú) and eclipsis (urú) mutations
  • Excludes letters j, k, q, v, w, x, y, z from the traditional alphabet
  • Has three major dialects: Munster, Connacht, and Ulster Irish

Irish Gaelic Vowel Letters

The Irish Gaelic alphabet includes 5 vowels: a, e, i, o, u. Each vowel can appear in short or long form, with the long form marked by a fada (acute accent): á, é, í, ó, ú. The fada changes both the length and often the quality of the vowel sound, making it essential for correct pronunciation and meaning.

Irish Vowels (Lowercase)

a
[ah]
e
[eh]
i
[ih]
o
[uh]
u
[uh]

Irish Vowels (Uppercase)

A
[AH]
E
[EH]
I
[IH]
O
[UH]
U
[UH]

Irish Gaelic Consonant Letters

The Irish Gaelic alphabet contains 13 consonants: b, c, d, f, g, h, l, m, n, p, r, s, t. Irish consonants can be either broad (caol) or slender (leathan), depending on the surrounding vowels.

This follows the caol le caol, leathan le leathan rule (slender with slender, broad with broad).

For example:

In the word "bó", meaning "cow", the consonant b is broad because it is followed by the broad vowel ó. In the word "bí" (be), the consonant b is slender because it is followed by the slender vowel í.

Irish Consonants (Lowercase)

b
[bee]
c
[kee]
d
[dee]
f
[eff]
g
[gee]
h
[aytch]
l
[ell]
m
[em]
n
[en]
p
[pee]
r
[ar]
s
[ess]
t
[tee]

Irish Consonants (Uppercase)

B
[BEE]
C
[KEE]
D
[DEE]
F
[EFF]
G
[GEE]
H
[AYTCH]
L
[ELL]
M
[EM]
N
[EN]
P
[PEE]
R
[AR]
S
[ESS]
T
[TEE]

Irish Gaelic Fada Vowels

Irish Gaelic uses fada marks (acute accents) on all five vowels: á, é, í, ó, ú to indicate long vowel sounds. The fada is crucial in Irish because it distinguishes between different words and meanings. For example, "cáca" (cake) versus "caca" (faeces), or "fear" (man) versus "féar" (grass).

The word "fada" itself means "long" in Irish, referring to the lengthening of the vowel sound.

á
[aw]
é
[ay]
í
[ee]
ó
[oh]
ú
[oo]

Á
[AW]
É
[AY]
Í
[EE]
Ó
[OH]
Ú
[OO]

Digits in Irish Gaelic

Irish Gaelic uses the standard Arabic numerals 0–9, with Irish number names: náid (0), aon (1), dó (2), trí (3), ceathair (4), cúig (5), sé (6), seacht (7), ocht (8), naoi (9).

Irish has both cardinal numbers (for counting) and a complex system of vigesimal (base-20) counting traditionally used, though the decimal system is more common today.

0
[náid]
1
[aon]
2
[dó]
3
[trí]
4
[ceathair]
5
[cúig]
6
[sé]
7
[seacht]
8
[ocht]
9
[naoi]

Punctuation and Symbols

Irish Gaelic uses standard punctuation marks including period (ponc), comma (camóg), question mark (comhartha ceiste), exclamation mark (uaillbhreac), hyphen (fleiscín), and apostrophe (uaschamóg).

.
,
?
!
-
'

Frequently Asked Questions (FAQs)

References:

  • [1] Central Statistics Office Ireland. "Census 2022 Profile 8 - The Irish Language and Education". CSO.ie. Retrieved from CSO: Irish Census 2022
  • [2] Glottolog. "Irish". Retrieved from Glottolog: Irish
  • [3] Unicode Consortium. "Unicode CLDR - Languages and Scripts". Retrieved from Unicode CLDR Scripts
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