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Lexicon in Irish (Léacsacan): Meaning, Pronunciation, Usage

The Irish for lexicon is léacsacan, a masculine noun (plural léacsacain).
Updated October 2026Report a mistake

How to say “lexicon” in Irish

Irish:
léacsacan
English:
lexicon
Word type:
noun
Gender:
masculine, first declension
Pronunciation:
“LAYK-suh-kun”  /ˈl̠ʲeːksəkən̪ˠ/
Various forms
Plural:
léacsacain (lexicons)
Genitive singular:
léacsacain, an léacsacain (e.g. méid an léacsacain, the size of the lexicon)
Genitive plural:
léacsacan, na léacsacan (e.g. comparáid na léacsacan, the comparison of the lexicons)

What does “léacsacan” mean?

lexicon
The vocabulary of a language, or a dictionary or word list that records it.Also: vocabulary, word list, dictionary.

Other Irish words for lexicon: foclóir (dictionary)

“Léacsacan” with the article

The plural of lexicon in Irish is léacsacain. Here is léacsacan after the article (an t-alt), in the singular and the plural.

an léacsacan
the lexicon
No change after an
na léacsacain
the lexicons
Plural: no change after na

“Léacsacan” in a sentence: Irish examples

Common Irish sentences using léacsacan, the Irish word for lexicon.

Tá léacsacan saibhir ag an nGaeilge.
Irish has a rich lexicon.
Rinne sí staidéar ar an léacsacan.
She studied the lexicon.
Tá focail iasachta i léacsacan an Bhéarla.
There are loanwords in the English lexicon.
Cuireadh na focail nua leis an léacsacan.
The new words were added to the lexicon.
Is cuid thábhachtach den teanga é an léacsacan.
The lexicon is an important part of the language.
Chuir siad léacsacain na dteangacha Ceilteacha i gcomparáid.
They compared the lexicons of the Celtic languages.
Tá leagan nua den léacsacan ar fáil ar líne.
A new version of the lexicon is available online.

Other nouns in Irish

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Lexicon in Irish: frequently asked questions

What is the Irish for lexicon?

The Irish for lexicon is léacsacan (pronounced “LAYK-suh-kun”). It’s a masculine noun and the plural is léacsacain.

How do you pronounce léacsacan in Irish?

Léacsacan is said like “LAYK-suh-kun” (IPA /ˈl̠ʲeːksəkən̪ˠ/).

What is the plural of lexicon in Irish?

The plural of léacsacan is léacsacain; with the article, na léacsacain means “the lexicons”. The genitive plural is léacsacan, as in comparáid na léacsacan (the comparison of the lexicons).

What is the difference between 'léacsacan' and 'foclóir'?

'Foclóir' is the everyday word for a dictionary, while 'léacsacan' is a technical term for the vocabulary of a language or a specialised word list.

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