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Base year in Irish (Bonnbhliain): Meaning, Pronunciation, Usage

The Irish for base year is bonnbhliain, a feminine noun (plural bonnbhlianta).
Updated October 2026Report a mistake

How to say “base year” in Irish

Irish:
bonnbhliain
English:
base year
Word type:
noun
Gender:
feminine, third declension
Pronunciation:
“BUN-vlee-in”  /ˈbˠʊn̪ˠˌvʲlʲiənʲ/
Various forms
Plural:
bonnbhlianta (base years)
Genitive singular:
bonnbhliana, na bonnbhliana (e.g. praghsanna na bonnbhliana, prices of the base year)
Genitive plural:
bonnbhlianta, na mbonnbhlianta (e.g. praghsanna na mbonnbhlianta, the prices of the base years)

What does “bonnbhliain” mean?

base year
A year used as the starting point or reference for comparing statistics, prices or indexes.Also: reference year, benchmark year.

“Bonnbhliain” with the article

The plural of base year in Irish is bonnbhlianta. Here is bonnbhliain after the article (an t-alt), in the singular and the plural.

an bhonnbhliain
the base year
Lenition: b becomes bh after an (feminine noun)
na bonnbhlianta
the base years
Plural: no change after na

“Bonnbhliain” in a sentence: Irish examples

Common Irish sentences using bonnbhliain, the Irish word for base year.

Is í 2015 an bhonnbhliain don innéacs seo.
2015 is the base year for this index.
Roghnaíodh bonnbhliain nua don suirbhé.
A new base year was chosen for the survey.
Cuirtear na figiúirí i gcomparáid leis an mbonnbhliain.
The figures are compared with the base year.
Bhí praghsanna na bonnbhliana i bhfad níos ísle.
Prices in the base year were much lower.
Athraíonn an oifig staidrimh na bonnbhlianta ó am go chéile.
The statistics office changes the base years from time to time.
Sa bhonnbhliain, socraíodh an t-innéacs ag céad.
In the base year, the index was set at one hundred.
Cén bhonnbhliain atá in úsáid sa tuarascáil?
Which base year is used in the report?

Other nouns in Irish

More everyday Irish nouns to learn next.

Base year in Irish: frequently asked questions

What is the Irish for base year?

The Irish for base year is bonnbhliain (pronounced “BUN-vlee-in”). It’s a feminine noun and the plural is bonnbhlianta.

How do you pronounce bonnbhliain in Irish?

Bonnbhliain is said like “BUN-vlee-in” (IPA /ˈbˠʊn̪ˠˌvʲlʲiənʲ/).

What is the plural of base year in Irish?

The plural of bonnbhliain is bonnbhlianta; with the article, na bonnbhlianta means “the base years”. The genitive plural is bonnbhlianta, as in praghsanna na mbonnbhlianta (the prices of the base years).

Why does bonnbhliain change to bhonnbhliain or mbonnbhliain?

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

How is 'bonnbhliain' formed?

It combines 'bonn' (base, foundation) with 'bliain' (year), and the second element is lenited as usual in compounds, giving 'bonnbhliain'.

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