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Bearing in Irish (Treo-uillinn): Meaning, Pronunciation, Usage

The Irish for bearing is treo-uillinn, a feminine noun (plural treo-uillinneacha).
Updated October 2026Report a mistake

How to say “bearing” in Irish

Irish:
treo-uillinn
English:
bearing
Word type:
noun
Gender:
feminine
Pronunciation:
“TRYOH-il-in”  /tʲɾʲoː ˈɪlʲənʲ/
Various forms
Plural:
treo-uillinneacha
Genitive singular:
treo-uillinne, na treo-uillinne (e.g. tomhas na treo-uillinne, measurement of the bearing)
Genitive plural:
treo-uillinneacha, na dtreo-uillinneacha (e.g. tomhas na dtreo-uillinneacha, the measurement of the bearings)

What does “treo-uillinn” mean?

bearing
In navigation and surveying, the direction of a point measured as an angle from a fixed reference direction, usually north.Also: direction angle, compass bearing, azimuth.

Other Irish words for bearing: iompar (carrying)

“Treo-uillinn” with the article

The plural of bearing in Irish is treo-uillinneacha. Here is treo-uillinn after the article (an t-alt), in the singular and the plural.

an treo-uillinn
the bearing
No change: d and t are not lenited after an
na treo-uillinneacha
the bearing (plural)
Plural: no change after na

“Treo-uillinn” in a sentence: Irish examples

Common Irish sentences using treo-uillinn, the Irish word for bearing.

Cén treo-uillinn atá ag an long?
What bearing is the ship on?
Tomhais an treo-uillinn leis an gcompás.
Measure the bearing with the compass.
Scríobh sé síos na treo-uillinneacha go cúramach.
He wrote down the bearings carefully.
Rinne mé botún i dtomhas na treo-uillinne.
I made a mistake in measuring the bearing.
Bhí mo threo-uillinn mícheart, agus chuamar amú.
My bearing was wrong, and we got lost.
Tá treo-uillinn nócha céim soir ón tuaisceart.
There is a bearing of ninety degrees east of north.
Sa léarscáil, marcáil an treo-uillinn le peann luaidhe.
On the map, mark the bearing with a pencil.

Other nouns in Irish

More everyday Irish nouns to learn next.

Bearing in Irish: frequently asked questions

What is the Irish for bearing?

The Irish for bearing is treo-uillinn (pronounced “TRYOH-il-in”). It’s a feminine noun and the plural is treo-uillinneacha.

How do you pronounce treo-uillinn in Irish?

Treo-uillinn is said like “TRYOH-il-in” (IPA /tʲɾʲoː ˈɪlʲənʲ/).

What is the plural of bearing in Irish?

The plural of treo-uillinn is treo-uillinneacha; with the article, it is na treo-uillinneacha. The genitive plural is treo-uillinneacha, as in tomhas na dtreo-uillinneacha (the measurement of the bearings).

Why does treo-uillinn change to threo-uillinn or dtreo-uillinn?

Irish changes the start of some words after certain words. After mo (my) treo-uillinn becomes mo threo-uillinn (lenition), and after ár (our) or i (in) it becomes ár dtreo-uillinn (eclipsis).

How is treo-uillinn different from uillinn?

Uillinn is any angle (and also an elbow), while treo-uillinn is specifically an angle giving direction, a bearing.

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