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Dense fog in Irish (Tromcheo): Meaning, Pronunciation, Usage

The Irish for dense fog is tromcheo, a masculine noun.
Updated October 2026Report a mistake

How to say “dense fog” in Irish

Irish:
tromcheo
English:
dense fog
Word type:
noun
Gender:
masculine
Pronunciation:
“TRUM-khyoh”  /ˈt̪ˠɾˠʊmˌçoː/
Various forms
Genitive singular:
tromcheo, an tromcheo (e.g. i lár an tromcheo, in the middle of the dense fog)

What does “tromcheo” mean?

dense fog
A thick, heavy fog that makes it very hard to see.Also: thick fog, heavy fog, pea-souper.

Other Irish words for dense fog: dallcheo (thick fog)

“Tromcheo” with the article

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

an tromcheo
the dense fog
No change after an

“Tromcheo” in a sentence: Irish examples

Common Irish sentences using tromcheo, the Irish word for dense fog.

Bhí tromcheo ar an mbóthar ar maidin.
There was dense fog on the road this morning.
Níor éirigh an tromcheo go meán lae.
The thick fog didn't lift until midday.
Chuamar amú sa tromcheo ar an sliabh.
We got lost in the thick fog on the mountain.
Cuireadh na heitiltí ar ceal mar gheall ar an tromcheo.
The flights were cancelled because of the dense fog.
Ní raibh radharc ar bith againn i dtromcheo mar sin.
We couldn't see a thing in fog like that.
Tá rabhadh tromcheo ann don oíche anocht.
There's a dense fog warning for tonight.
Thiomáin sé go mall tríd an tromcheo.
He drove slowly through the heavy fog.

Other nouns in Irish

More everyday Irish nouns to learn next.

Dense fog in Irish: frequently asked questions

What is the Irish for dense fog?

The Irish for dense fog is tromcheo (pronounced “TRUM-khyoh”). It’s a masculine noun.

How do you pronounce tromcheo in Irish?

Tromcheo is said like “TRUM-khyoh” (IPA /ˈt̪ˠɾˠʊmˌçoː/).

Does tromcheo have a plural?

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

Why does tromcheo change to thromcheo or dtromcheo?

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

What is the difference between 'tromcheo' and 'ceo'?

'Ceo' is the ordinary word for fog or mist, while 'tromcheo' adds 'trom' (heavy) to mean especially thick fog. For light drizzly mist, 'ceobhrán' is used.

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