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Overhead projector in Irish (Osteilgeoir): Meaning, Pronunciation, Usage

The Irish for overhead projector is osteilgeoir, a masculine noun (plural osteilgeoirí).
Updated October 2026Report a mistake

How to say “overhead projector” in Irish

Irish:
osteilgeoir
English:
overhead projector
Word type:
noun
Gender:
masculine
Pronunciation:
“OS-tel-ig-ore”  /ˈɔsˌtʲɛlʲəɟoːrʲ/
Various forms
Plural:
osteilgeoirí (overhead projectors)
Genitive singular:
osteilgeora, an osteilgeora (e.g. lampa an osteilgeora, the lamp of the overhead projector)
Genitive plural:
osteilgeoirí, na n-osteilgeoirí (e.g. úsáid na n-osteilgeoirí, the use of the overhead projectors)

What does “osteilgeoir” mean?

overhead projector
A device that projects images from transparent sheets onto a screen or wall above and behind the speaker.Also: projector, ohp.

“Osteilgeoir” with the article

The plural of overhead projector in Irish is osteilgeoirí. Here is osteilgeoir after the article (an t-alt), in the singular and the plural.

an t-osteilgeoir
the overhead projector
Masculine nouns take t before a vowel after an
na hosteilgeoirí
the overhead projectors
Plural: na adds h before a vowel

“Osteilgeoir” in a sentence: Irish examples

Common Irish sentences using osteilgeoir, the Irish word for overhead projector.

Tá osteilgeoir nua sa seomra ranga.
There is a new overhead projector in the classroom.
Las an múinteoir an t-osteilgeoir.
The teacher switched on the overhead projector.
Níl an t-osteilgeoir ag obair inniu.
The overhead projector isn't working today.
Chuir sí trédhearcán ar an osteilgeoir.
She put a transparency on the overhead projector.
Bhris bolgán an osteilgeora arís.
The overhead projector's bulb broke again.
Ní úsáidtear osteilgeoirí sna scoileanna anois.
Overhead projectors aren't used in schools now.
Cá bhfuil m'osteilgeoir imithe?
Where has my overhead projector gone?

Other nouns in Irish

More everyday Irish nouns to learn next.

Overhead projector in Irish: frequently asked questions

What is the Irish for overhead projector?

The Irish for overhead projector is osteilgeoir (pronounced “OS-tel-ig-ore”). It’s a masculine noun and the plural is osteilgeoirí.

How do you pronounce osteilgeoir in Irish?

Osteilgeoir is said like “OS-tel-ig-ore” (IPA /ˈɔsˌtʲɛlʲəɟoːrʲ/).

What is the plural of overhead projector in Irish?

The plural of osteilgeoir is osteilgeoirí; with the article, na hosteilgeoirí means “the overhead projectors”. The genitive plural is osteilgeoirí, as in úsáid na n-osteilgeoirí (the use of the overhead projectors).

Why does osteilgeoir sometimes have a t or h in front of it?

Irish nouns beginning with a vowel take a prefix after certain words: an t-osteilgeoir (the overhead projector), a hosteilgeoir (her overhead projector), a n-osteilgeoir (their overhead projector), na hosteilgeoirí (the overhead projectors).

How is 'osteilgeoir' different from 'teilgeoir'?

'Teilgeoir' is any projector, such as a data projector, while 'osteilgeoir' (from 'os', above) is specifically an overhead projector.

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