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Expression in Irish (Slonn): Meaning, Pronunciation, Usage

The Irish for expression is slonn, a masculine noun (plural sloinn).
Updated October 2026Report a mistake

How to say “expression” in Irish

Irish:
slonn
English:
expression
Word type:
noun
Gender:
masculine, first declension
Pronunciation:
“slown”  /sl̪ˠɔn̪ˠ/
Various forms
Plural:
sloinn (expressions)
Genitive singular:
sloinn, an tsloinn (e.g. luach an tsloinn, the value of the expression)
Genitive plural:
slonn, na slonn (e.g. luachanna na slonn, the values of the expressions)

What does “slonn” mean?

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

expression
A mathematical expression, a combination of symbols, numbers and operators.Also: mathematical expression, algebraic expression.
1 other meaning:
2expression
A word or phrase used to express something; a term.Also: phrase, term.

Other Irish words for expression: dreach (facial expression), frása (phrase)

“Slonn” with the article

The plural of expression in Irish is sloinn. Here is slonn after the article (an t-alt), in the singular and the plural.

an slonn
the expression
No change after an
na sloinn
the expressions
Plural: no change after na

“Slonn” in a sentence: Irish examples

Common Irish sentences using slonn, the Irish word for expression.

Simpligh an slonn seo.
Simplify this expression.
Is slonn ailgéabrach é sin.
That is an algebraic expression.
Cad é luach an tsloinn nuair is ionann x agus a dó?
What is the value of the expression when x equals two?
Scríobh na sloinn sin i do chóipleabhar.
Write those expressions in your copybook.
Tá botún i mo shlonn.
There is a mistake in my expression.
Tá lúibíní sa slonn sin.
There are brackets in that expression.
Fachtóirigh gach slonn ar an leathanach.
Factorise every expression on the page.

Other nouns in Irish

More everyday Irish nouns to learn next.

Expression in Irish: frequently asked questions

What is the Irish for expression?

The Irish for expression is slonn (pronounced “slown”). It’s a masculine noun and the plural is sloinn.

How do you pronounce slonn in Irish?

Slonn is said like “slown” (IPA /sl̪ˠɔn̪ˠ/).

What is the plural of expression in Irish?

The plural of slonn is sloinn; with the article, na sloinn means “the expressions”. The genitive plural is slonn, as in luachanna na slonn (the values of the expressions).

Why does slonn change to shlonn?

After words like mo (my) and do (your) the first letter is lenited: mo shlonn. After ár (our) it stays ár slonn, because s does not take eclipsis.

What is the difference between 'slonn' and 'cothromóid'?

A 'slonn' is an expression with no equals sign, such as 2x + 3, while a 'cothromóid' is an equation, such as 2x + 3 = 7.

Is 'slonn' related to 'sloinne' (surname)?

They look similar and both come from the idea of naming, but 'sloinne' means surname and 'slonn' is used for an expression, especially in mathematics.

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