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Boom in Irish (Bum): Meaning, Pronunciation, Usage

The Irish for boom is bum, a masculine noun (plural bumanna).
Updated October 2026Report a mistake

How to say “boom” in Irish

Irish:
bum
English:
boom
Word type:
noun
Gender:
masculine, third declension
Pronunciation:
“bum”  /bˠʊmˠ/
Various forms
Plural:
bumanna (booms)
Genitive singular:
buma, an bhuma (e.g. ceann an bhuma, the end of the boom)
Genitive plural:
bumanna, na mbumanna (e.g. ceann na mbumanna, the end of the booms)

What does “bum” mean?

boom
A spar along the foot of a sail, or a floating barrier across a harbour or river.Also: spar, harbour boom, sail boom.

“Bum” with the article

The plural of boom in Irish is bumanna. Here is bum after the article (an t-alt), in the singular and the plural.

an bum
the boom
No change after an
na bumanna
the booms
Plural: no change after na

“Bum” in a sentence: Irish examples

Common Irish sentences using bum, the Irish word for boom.

Bhuail an bum é sa cheann.
The boom hit him on the head.
Coinnigh do cheann síos faoin mbum.
Keep your head down under the boom.
Tá bum nua ar an mbád seo.
This boat has a new boom.
Cheangail sé bun an tseoil den bhum.
He tied the foot of the sail to the boom.
Bhí bumanna trasna béal an chuain.
There were booms across the mouth of the harbour.
Bhris an bum sa stoirm aréir.
The boom broke in the storm last night.
Luasc an bum anonn go tobann.
The boom swung across suddenly.

Other nouns in Irish

More everyday Irish nouns to learn next.

Boom in Irish: frequently asked questions

What is the Irish for boom?

The Irish for boom is bum (pronounced “bum”). It’s a masculine noun and the plural is bumanna.

How do you pronounce bum in Irish?

Bum is said like “bum” (IPA /bˠʊmˠ/).

What is the plural of boom in Irish?

The plural of bum is bumanna; with the article, na bumanna means “the booms”. The genitive plural is bumanna, as in ceann na mbumanna (the end of the booms).

Why does bum change to bhum or mbum?

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

Does 'bum' mean a bottom or a tramp as in English?

No, Irish 'bum' is a nautical boom. For a bottom use 'tóin', and for a tramp use 'fánaí'.

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