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Tracing in Irish (Rianú): Meaning, Pronunciation, Usage

‘rianú’ also means: marking out

The Irish for tracing is rianú, a masculine noun. Ag rianú is tracing, from the verb rianaigh.
Updated October 2026Report a mistake

How to say “tracing” in Irish

Irish:
rianú
English:
tracing, marking out
Word type:
noun (verbal noun)
Verbal noun of:
rianaigh, to trace (ag rianú, tracing)
Gender:
masculine
Pronunciation:
“REE-uh-noo”  /ˈɾʲiən̪ˠuː/
Various forms
Genitive singular:
rianaithe, an rianaithe (e.g. córas rianaithe, tracking system)

What does “rianú” mean?

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

tracing
The act of tracing or tracking something, such as a route, an outline or the source of something; verbal noun of the verb rianaigh.Also: tracking, trace, mapping out.
1 other meaning: marking out
2marking out
The act of marking out or plotting lines, a course or a design.Also: plotting, outlining, delineation.

“Rianú” as a verbal noun

After ag, rianú means tracing: it is the verbal noun of the verb rianaigh (to trace). A noun that follows it goes into the genitive.

agat
+
rianúverbal noun
=
ag rianútracing

“Rianú” with the article

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

an rianú
the tracing
No change after an

“Rianú” in a sentence: Irish examples

Common Irish sentences using rianú, the Irish word for tracing.

Tá rianú teagmhálaithe ar siúl ag an tseirbhís sláinte.
The health service is carrying out contact tracing.
Thosaigh an rianú ar an bpacáiste inné.
The tracking of the parcel started yesterday.
Bhí an páiste ag rianú pictiúir ar pháipéar tanaí.
The child was tracing a picture on thin paper.
Cheannaigh siad córas rianaithe nua don fhlít.
They bought a new tracking system for the fleet.
Is deacair rianú a dhéanamh ar bhunús an scéil.
It is hard to trace the origin of the story.
Úsáidtear GPS i rianú na mbád farantóireachta.
GPS is used in tracking the ferries.
Bhí páipéar rianaithe aici sa mhála scoile.
She had tracing paper in her school bag.

Other nouns in Irish

More everyday Irish nouns to learn next.

Tracing in Irish: frequently asked questions

What is the Irish for tracing?

The Irish for tracing is rianú (pronounced “REE-uh-noo”). It’s a masculine noun. Depending on context it can also mean marking out.

How do you pronounce rianú in Irish?

Rianú is said like “REE-uh-noo” (IPA /ˈɾʲiən̪ˠuː/).

Does rianú have a plural?

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

Does rianú have more than one meaning?

Yes. Rianú can mean tracing or marking out, depending on context; the first is the most common.

How is rianú related to rian?

Rian means a trace or mark, and rianú is the verbal noun of rianaigh, so it means the act of tracing or tracking, as in rianú teagmhálaithe, contact tracing.

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