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blwyddyn

year

NounFeminine (benywaidd)A2/ˈblʊɨ̯ðɨ̞n/

"blwyddyn" means "year" in Welsh (feminine noun). Pronounced /ˈblʊɨ̯ðɨ̞n/. Mutation forms: Treiglad Meddal → flwyddyn, Treiglad Trwynol → mlwyddyn.

Mutation forms

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

MutationForm
Base formblwyddyn
Treiglad Meddalflwyddyn
Treiglad Trwynolmlwyddyn

"blwyddyn" in context

Cyhoeddir llawer o lyfrau Cymraeg bob blwyddyn.

Many Welsh books are published every year.

B1

Blwyddyn Newydd Dda!

Happy New Year!

A1

Blwyddyn newydd dda.

Happy new year.

A1

Hoffwn wybod sut y bydd Llywodraeth Cymru yn cyfrifo faint o gyllid sydd ei angen ar gynghorau i gyflawni'r dyletswyddau newydd hyn, ac yn hollbwysig, a fydd hynny'n cael ei adolygu bob blwyddyn.

I'd like to know how the Welsh Government will calculate the amount of funding needed for councils to discharge these new duties, and, crucially, whether that will be reviewed each year.

B2

Bob blwyddyn, mae trigolion yn teimlo eu bod yn talu mwy ond yn cael llai yn gyfnewid.

Every year, residents feel like they pay more but get less in return.

B1

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 →

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Related Welsh words

Dydd Llun

Monday

Dydd Mawrth

Tuesday

Dydd Mercher

Wednesday

Dydd Iau

Thursday

Dydd Gwener

Friday

Dydd Sadwrn

Saturday

Dydd Sul

Sunday

wythnos

week

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