HeyRua Get the app

Set in Irish (Tacar): Meaning, Pronunciation, Usage

‘tacar’ also means: gleaning · artificial thing

The Irish for set is tacar, a masculine noun (plural tacair).
Updated October 2026Report a mistake

How to say “set” in Irish

Irish:
tacar
English:
set, gleaning, artificial thing
Word type:
noun
Gender:
masculine, first declension
Pronunciation:
“TOK-ur”  /ˈt̪ˠakəɾˠ/
Various forms
Plural:
tacair (sets)
Genitive singular:
tacair, an tacair (e.g. baill an tacair, members of the set)
Genitive plural:
tacar, na dtacar (e.g. teoiric na dtacar, set theory)

What does “tacar” mean?

“Tacar” has three alternative meanings. The most common comes first.

set
A collection of things that belong together, especially in mathematics or computing.Also: collection, group.
2 other meanings: gleaning or artificial thing
2gleaning
The act of gathering or collecting things bit by bit; verbal noun of the verb tacair.Also: collection, gathering.
3artificial thing
Something artificial or contrived rather than natural, as in a made-up or makeshift thing.Also: contrivance, makeshift.

Other Irish words for set: bailiúchán (collection), seit (set), plandáil (plant)

“Tacar” with the article

The plural of set in Irish is tacair. Here is tacar after the article (an t-alt), in the singular and the plural.

an tacar
the set
No change after an
na tacair
the sets
Plural: no change after na

“Tacar” in a sentence: Irish examples

Common Irish sentences using tacar, the Irish word for set.

Is tacar uimhreacha é seo.
This is a set of numbers.
Scríobh baill an tacair ar an gclár.
Write the members of the set on the board.
Tá cúig bhall sa tacar seo.
There are five members in this set.
D'fhoghlaimíomar faoi thacair inniu.
We learned about sets today.
Tarraing ciorcal timpeall gach tacair.
Draw a circle around each set.
Is fo-thacar den tacar mór é sin.
That is a subset of the big set.
Bhí teoiric na dtacar deacair dom.
Set theory was difficult for me.

Other nouns in Irish

More everyday Irish nouns to learn next.

Set in Irish: frequently asked questions

What is the Irish for set?

The Irish for set is tacar (pronounced “TOK-ur”). It’s a masculine noun and the plural is tacair. Depending on context it can also mean gleaning or artificial thing.

How do you pronounce tacar in Irish?

Tacar is said like “TOK-ur” (IPA /ˈt̪ˠakəɾˠ/).

What is the plural of set in Irish?

The plural of tacar is tacair; with the article, na tacair means “the sets”. The genitive plural is tacar, as in teoiric na dtacar (set theory).

Does tacar have more than one meaning?

Yes. Tacar can mean set, gleaning or artificial thing, depending on context; the first is the most common.

Why does tacar change to thacar or dtacar?

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

Is 'tacar' or 'sraith' the word for a mathematical set?

In mathematics a set is 'tacar', e.g. 'tacar folamh' for empty set; 'sraith' means a series or row.

Learn Irish by
actually speaking it

Learn everyday Irish words like tacar through guided conversation with Rua.

7-day free trial. Cancel anytime.

The HeyRua app home screen