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Increase in Irish (Breisiú): Meaning, Pronunciation, Usage

‘breisiú’ also means: top-up

The Irish for increase is breisiú, a masculine noun. Ag breisiú is increasing, from the verb breisigh.
Updated October 2026Report a mistake

How to say “increase” in Irish

Irish:
breisiú
English:
increase, top-up
Word type:
noun (verbal noun)
Verbal noun of:
breisigh, to increase (ag breisiú, increasing)
Gender:
masculine
Pronunciation:
“BRESH-oo”  /bʲɾʲɛʃuː/
Various forms
Genitive singular:
breisithe, an bhreisithe (e.g. cárta breisithe, top-up card)

What does “breisiú” mean?

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

increase
The act of increasing or adding to something; verbal noun of the verb breisigh.Also: increasing, addition, adding, augmentation, growth.
1 other meaning: top-up
2top-up
Adding money or credit to a phone or card.Also: topping up, recharge, credit top-up.

Other Irish words for increase: breis (increase), méadú (increase), méadaigh (increase), breisigh (increase)

“Breisiú” as a verbal noun

After ag, breisiú means increasing: it is the verbal noun of the verb breisigh (to increase). A noun that follows it goes into the genitive.

agat
+
breisiúverbal noun
=
ag breisiúincreasing

“Breisiú” with the article

Here is breisiú after the article (an t-alt).

an breisiú
the increase
No change after an

“Breisiú” in a sentence: Irish examples

Common Irish sentences using breisiú, the Irish word for increase.

Tá breisiú ag teacht ar líon na ndaoine.
The number of people is increasing.
Theastaigh breisiú creidmheasa ó mo ghuthán.
My phone needed a credit top-up.
Cheannaigh mé cárta breisithe sa siopa.
I bought a top-up card in the shop.
Rinne mé breisiú ar mo ghuthán inniu.
I topped up my phone today.
Is gá an breisiú a dhéanamh roimh an Aoine.
The top-up has to be done before Friday.
Bhí costas an bhreisithe ró-ard dom.
The top-up cost too much for me.

Other nouns in Irish

More everyday Irish nouns to learn next.

Increase in Irish: frequently asked questions

What is the Irish for increase?

The Irish for increase is breisiú (pronounced “BRESH-oo”). It’s a masculine noun. Depending on context it can also mean top-up.

How do you pronounce breisiú in Irish?

Breisiú is said like “BRESH-oo” (IPA /bʲɾʲɛʃuː/).

Does breisiú have a plural?

No plural form is given for breisiú in the standard. Many abstract and mass nouns in Irish have no plural.

Does breisiú have more than one meaning?

Yes. Breisiú can mean increase or top-up, depending on context; the first is the most common.

Why does breisiú change to bhreisiú or mbreisiú?

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

What is the difference between breisiú and méadú?

Both mean increase, but méadú is the more general everyday word, while breisiú suggests adding to something, and is also used for topping up phone credit.

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