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Thesis in Irish (Tráchtas): Meaning, Pronunciation, Usage

‘tráchtas’ also means: treatise

The Irish for thesis is tráchtas, a masculine noun (plural tráchtais).
Updated October 2026Report a mistake

How to say “thesis” in Irish

Irish:
tráchtas
English:
thesis, treatise
Word type:
noun
Gender:
masculine, first declension
Pronunciation:
“TRAWKH-tus”  /ˈt̪ɾˠaːxt̪ˠəsˠ/
Various forms
Plural:
tráchtais (theses)
Genitive singular:
tráchtais, an tráchtais (e.g. teideal an tráchtais, the title of the thesis)
Genitive plural:
tráchtas, na dtráchtas (e.g. liosta na dtráchtas, the list of theses)

What does “tráchtas” mean?

“Tráchtas” has two alternative meanings. The most common comes first.

thesis
A long piece of academic writing presenting research, usually for a university degree.Also: dissertation, treatise.
1 other meaning: treatise
2treatise
A formal written discussion or essay on a particular subject.Also: discourse, essay.

“Tráchtas” with the article

The plural of thesis in Irish is tráchtais. Here is tráchtas after the article (an t-alt), in the singular and the plural.

an tráchtas
the thesis
No change after an
na tráchtais
the theses
Plural: no change after na

“Tráchtas” in a sentence: Irish examples

Common Irish sentences using tráchtas, the Irish word for thesis.

Tá tráchtas á scríobh aici faoi stair na Gaeilge.
She is writing a thesis on the history of Irish.
Bhí mé ag críochnú mo thráchtais Ph.D.
I was finishing my Ph.D. thesis.
Cuireadh an tráchtas isteach in am.
The thesis was submitted on time.
Léigh an t-ollamh cuid den tráchtas.
The professor read part of the thesis.
Tá na tráchtais go léir sa leabharlann.
All the theses are in the library.
Cé mhéad focal atá i do thráchtas?
How many words are in your thesis?
Tá an t-eolas sin sa tráchtas a scríobh sé.
That information is in the thesis he wrote.

Other nouns in Irish

More everyday Irish nouns to learn next.

Thesis in Irish: frequently asked questions

What is the Irish for thesis?

The Irish for thesis is tráchtas (pronounced “TRAWKH-tus”). It’s a masculine noun and the plural is tráchtais. Depending on context it can also mean treatise.

How do you pronounce tráchtas in Irish?

Tráchtas is said like “TRAWKH-tus” (IPA /ˈt̪ɾˠaːxt̪ˠəsˠ/).

What is the plural of thesis in Irish?

The plural of tráchtas is tráchtais; with the article, na tráchtais means “the theses”. The genitive plural is tráchtas, as in liosta na dtráchtas (the list of theses).

Does tráchtas have more than one meaning?

Yes. Tráchtas can mean thesis or treatise, depending on context; the first is the most common.

Why does tráchtas change to thráchtas or dtráchtas?

Irish changes the start of some words after certain words. After mo (my) tráchtas becomes mo thráchtas (lenition), and after ár (our) or i (in) it becomes ár dtráchtas (eclipsis).

Is 'tráchtas' related to 'trácht'?

Yes, 'tráchtas' comes from 'trácht' (mention, discussion), so a 'tráchtas' is an extended discussion of a topic.

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