HeyRua Get the app

Mucus in Irish (Smuga): Meaning, Pronunciation, Usage

‘smuga’ also means: snot

The Irish for mucus is smuga, a masculine noun (plural smugaí).
Updated October 2026Report a mistake

How to say “mucus” in Irish

Irish:
smuga
English:
mucus, snot
Word type:
noun
Gender:
masculine, fourth declension
Pronunciation:
“SMUG-uh”  /ˈsmˠʊɡə/
Various forms
Plural:
smugaí (mucuses)
Genitive singular:
smuga, an smuga (e.g. boladh an smuga, the smell of the mucus)
Genitive plural:
smugaí, na smugaí (e.g. dath na smugaí, the colour of the mucus discharges)

What does “smuga” mean?

“Smuga” has two alternative meanings. The most common comes first.

mucus
The thick slimy fluid produced in the nose and other parts of the body.Also: snot, nasal mucus, phlegm.
1 other meaning: snot
2snot
Informally, the stuff that runs from a person's nose, especially when they have a cold.Also: bogey, runny nose.

“Smuga” with the article

The plural of mucus in Irish is smugaí. Here is smuga after the article (an t-alt), in the singular and the plural.

an smuga
the mucus
No change after an
na smugaí
the mucuses
Plural: no change after na

“Smuga” in a sentence: Irish examples

Common Irish sentences using smuga, the Irish word for mucus.

Tá smuga ag rith leis an leanbh.
The child's nose is running.
Glan an smuga de do shrón.
Wipe the snot off your nose.
Bhí an smuga go tiubh agus buí.
The mucus was thick and yellow.
Bíonn níos mó smuga ann nuair a bhíonn slaghdán ort.
There's more mucus when you have a cold.
Tá mo shrón lán smuga inniu.
My nose is full of snot today.
Bhí smuga ar a mhuinchille aige.
He had snot on his sleeve.
Thug an dochtúir faoi deara dath an smuga.
The doctor noticed the colour of the mucus.

Other nouns in Irish

More everyday Irish nouns to learn next.

Mucus in Irish: frequently asked questions

What is the Irish for mucus?

The Irish for mucus is smuga (pronounced “SMUG-uh”). It’s a masculine noun and the plural is smugaí. Depending on context it can also mean snot.

How do you pronounce smuga in Irish?

Smuga is said like “SMUG-uh” (IPA /ˈsmˠʊɡə/).

What is the plural of mucus in Irish?

The plural of smuga is smugaí; with the article, na smugaí means “the mucuses”. The genitive plural is smugaí, as in dath na smugaí (the colour of the mucus discharges).

Does smuga have more than one meaning?

Yes. Smuga can mean mucus or snot, depending on context; the first is the most common.

What is the difference between 'smuga' and 'réama'?

'Smuga' is mucus from the nose, snot, while 'réama' usually means phlegm or catarrh in the chest and throat.

Learn Irish by
actually speaking it

Learn everyday Irish words like smuga through guided conversation with Rua.

7-day free trial. Cancel anytime.

The HeyRua app home screen