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Direction-finding in Irish (Treo-aimsiú): Meaning, Pronunciation, Usage

The Irish for direction-finding is treo-aimsiú, a masculine noun.
Updated October 2026Report a mistake

How to say “direction-finding” in Irish

Irish:
treo-aimsiú
English:
direction-finding
Word type:
noun
Gender:
masculine
Pronunciation:
“TROH-am-shoo”  /ˈtɾʲoːˌamʲʃuː/
Various forms
Genitive singular:
treo-aimsithe, an treo-aimsithe (e.g. córas treo-aimsithe, direction-finding system)

What does “treo-aimsiú” mean?

direction-finding
The technique of finding the direction from which a radio signal comes, used especially in navigation.Also: direction finding, radio direction finding, df.

“Treo-aimsiú” with the article

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

an treo-aimsiú
the direction-finding
No change after an

“Treo-aimsiú” in a sentence: Irish examples

Common Irish sentences using treo-aimsiú, the Irish word for direction-finding.

Úsáidtear treo-aimsiú ar longa agus ar eitleáin.
Direction-finding is used on ships and aircraft.
Tá an treo-aimsiú an-tábhachtach do loingseoirí.
Direction-finding is very important for navigators.
Cheannaigh siad trealamh treo-aimsithe nua don bhád.
They bought new direction-finding equipment for the boat.
D'fhoghlaim sé treo-aimsiú san arm.
He learned direction-finding in the army.
Rinne an t-innealtóir obair ar an treo-aimsiú.
The engineer worked on the direction-finding.
Is cuid den chúrsa raidió é treo-aimsiú.
Direction-finding is part of the radio course.
Theip ar an gcóras treo-aimsithe le linn na stoirme.
The direction-finding system failed during the storm.

Other nouns in Irish

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Direction-finding in Irish: frequently asked questions

What is the Irish for direction-finding?

The Irish for direction-finding is treo-aimsiú (pronounced “TROH-am-shoo”). It’s a masculine noun.

How do you pronounce treo-aimsiú in Irish?

Treo-aimsiú is said like “TROH-am-shoo” (IPA /ˈtɾʲoːˌamʲʃuː/).

Does treo-aimsiú have a plural?

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

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

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

How is 'treo-aimsiú' formed?

It combines 'treo' (direction) with 'aimsiú' (finding, locating), the verbal noun of 'aimsigh', so it literally means 'direction-finding'.

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