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Coaster in Irish (Cóstóir): Meaning, Pronunciation, Usage

The Irish for coaster is cóstóir, a masculine noun (plural cóstóirí).
Updated October 2026Report a mistake

How to say “coaster” in Irish

Irish:
cóstóir
English:
coaster
Word type:
noun
Gender:
masculine
Pronunciation:
“KOH-stoh-ir”  /ˈkoːsˠt̪ˠoːɾʲ/
Various forms
Plural:
cóstóirí (coasters)
Genitive singular:
cóstóra, an chóstóra (e.g. captaen an chóstóra, the captain of the coaster)
Genitive plural:
cóstóirí, na gcóstóirí (e.g. foirne na gcóstóirí, the crews of the coasters)

What does “cóstóir” mean?

coaster
A small ship that carries cargo from port to port along the coast.Also: coasting vessel, coastal ship, coastal trader.

Other Irish words for coaster: cóstaer (coaster)

“Cóstóir” with the article

The plural of coaster in Irish is cóstóirí. Here is cóstóir after the article (an t-alt), in the singular and the plural.

an cóstóir
the coaster
No change after an
na cóstóirí
the coasters
Plural: no change after na

“Cóstóir” in a sentence: Irish examples

Common Irish sentences using cóstóir, the Irish word for coaster.

Tháinig cóstóir isteach sa chuan ar maidin.
A coaster came into the harbour this morning.
Bhí an cóstóir lán le gual.
The coaster was full of coal.
D'oibrigh m'athair ar chóstóir ar feadh blianta.
My father worked on a coaster for years.
Tá na cóstóirí ag fanacht le taoide.
The coasters are waiting for the tide.
Chlis inneall an chóstóra amach ón gcósta.
The coaster's engine broke down off the coast.
Is long bheag é cóstóir a sheolann cois cósta.
A coaster is a small ship that sails along the coast.
Chonaiceamar dhá chóstóir ag an gcé inné.
We saw two coasters at the quay yesterday.

Other nouns in Irish

More everyday Irish nouns to learn next.

Coaster in Irish: frequently asked questions

What is the Irish for coaster?

The Irish for coaster is cóstóir (pronounced “KOH-stoh-ir”). It’s a masculine noun and the plural is cóstóirí.

How do you pronounce cóstóir in Irish?

Cóstóir is said like “KOH-stoh-ir” (IPA /ˈkoːsˠt̪ˠoːɾʲ/).

What is the plural of coaster in Irish?

The plural of cóstóir is cóstóirí; with the article, na cóstóirí means “the coasters”. The genitive plural is cóstóirí, as in foirne na gcóstóirí (the crews of the coasters).

Why does cóstóir change to chóstóir or gcóstóir?

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

Does 'cóstóir' mean a drinks coaster?

No, 'cóstóir' is a coastal cargo ship. A mat for a glass is usually called 'mata beorach' or 'tráidire gloine'.

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