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Heat in Irish (Teas): Meaning, Pronunciation, Usage

‘teas’ also means: fever · passion

The Irish for heat is teas, a masculine noun.
Updated October 2026Report a mistake

How to say “heat” in Irish

Irish:
teas
English:
heat, fever, passion
Word type:
noun
Gender:
masculine, third declension
Pronunciation:
“tyass”  /tʲasˠ/
Various forms
Genitive singular:
teasa, an teasa (e.g. foinse teasa, source of heat)

What does “teas” mean?

“Teas” has three alternative meanings. The most common comes first.

heat
The quality of being hot, or the warmth given off by a fire, the sun or a body.Also: warmth, hotness.
2 other meanings: fever or passion
2fever
A raised body temperature, feverishness, as when someone is ill.Also: feverishness, temperature.
3passion
Strong feeling or intensity, as in the heat of an argument.Also: ardour, heat of the moment, intensity.

Other Irish words for heat: teaspach (heat), brothall (heat)

“Teas” with the article

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

an teas
the heat
No change after an

“Teas” in a sentence: Irish examples

Common Irish sentences using teas, the Irish word for heat.

Bhí teas mór sa seomra aréir.
The room was very hot last night.
Níl mórán teasa sa ghrian inniu.
There isn't much heat in the sun today.
Cuir an teas ar siúl, le do thoil.
Turn on the heating, please.
Tá teas ag teacht ón tine.
Heat is coming from the fire.
Bhí an teas millteanach an lá ar fad.
The heat was terrible all day.
Bhí teas ard sa leanbh i rith na hoíche.
The child had a high temperature during the night.
Dúirt sé é i dteas na feirge.
He said it in the heat of anger.

Other nouns in Irish

More everyday Irish nouns to learn next.

Heat in Irish: frequently asked questions

What is the Irish for heat?

The Irish for heat is teas (pronounced “tyass”). It’s a masculine noun. Depending on context it can also mean fever or passion.

How do you pronounce teas in Irish?

Teas is said like “tyass” (IPA /tʲasˠ/).

Does teas have a plural?

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

Does teas have more than one meaning?

Yes. Teas can mean heat, fever or passion, depending on context; the first is the most common.

Why does teas change to theas or dteas?

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

What is the difference between teas and brothall?

Teas is the general word for heat, while brothall means close, sultry heat in the weather, as in 'tá brothall ann'.

How do I say central heating?

Central heating is teas lárnach, and 'téamh' is used for the act of heating something.

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