blas.blas.
HomeArchiveResearch
Tables
blas.blas.

tri

three (3, masc.)

numeralA1

"tri" means "three (3, masc.)" in Welsh (numeral). Mutation forms: Treiglad Meddal → dri, Treiglad Trwynol → nhri, Treiglad Llaes → thri.

Mutation forms

In Welsh, the first letter of "tri" changes depending on the grammatical context. These are the mutated forms:

MutationForm
Base formtri
Treiglad Meddaldri
Treiglad Trwynolnhri
Treiglad Llaesthri

When does "tri" mutate?

am— for / about (triggers treiglad meddal)

tri→am dri(at three (o'clock))

tua— approximately/toward (triggers treiglad llaes)

tri→tua thri(about three)

"tri" in context

Un, dau, tri, pedwar, pump, chwech, saith, wyth, naw, deg.

One, two, three, four, five, six, seven, eight, nine, ten.

A1

Mae'r ewcaryotau'n ffurfio un o'r tri pharth o organebau byw.

Eukaryotes make up one of the three groups of living organisms.

B1

Yma nodir pa mor effeithlon y mae ynni wedi cael ei ddefnyddio yn yr adeilad hwn dros y tri chyfnod cyfrifo diwethaf.

This tells you how efficiently energy has been used in this building over the last three accounting periods.

C1

Ga i brynu tri oren?

May I buy three oranges?

A1

Mae'r grŵp yn cynnwys y tri awdurdod lleol nad oes ganddynt ysgol, ond hefyd yr awdurdodau lleol—Casnewydd, Torfaen, Rhondda Cynon Taf, a Phowys—y gallai hynny effeithio arnynt hefyd.

The group consists of the three local authorities that don’t have a school, but also the local authorities—Newport, Torfaen, Rhondda Cynon Taf, and Powys—that might be affected by that, as well.

C1

Further reading

Welsh Mutations Explained — Soft, Nasal & Aspirate →Welsh Pronunciation — It's Actually Easier Than English →How to Learn Welsh as an Adult — A Step-by-Step Roadmap →Best Apps to Learn Welsh (2026) →Browse all Welsh vocabulary →

Learn "tri" and 3,000+ Welsh words

blas. teaches vocabulary with spaced repetition — including mutation drilling, example sentences, and pronunciation. Free to start.

Start learning Welsh

Related Welsh words

un

one (1)

dau

two (2, masc.)

dwy

two (2, fem.)

tair

three (3, fem.)

pedwar

four (4, masc.)

pedair

four (4, fem.)

pump

five (5)

chwech

six (6)

blas.
Learn WelshBlogPrivacy