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cefnfor

sea

NounMasculine (gwrywaidd)B2/ˈkɛvnvɔr/

"cefnfor" means "sea" in Welsh (masculine noun). Pronounced /ˈkɛvnvɔr/. Mutation forms: Treiglad Meddal → gefnfor, Treiglad Trwynol → nghefnfor, Treiglad Llaes → chefnfor.

Mutation forms

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

MutationForm
Base formcefnfor
Treiglad Meddalgefnfor
Treiglad Trwynolnghefnfor
Treiglad Llaeschefnfor

"cefnfor" in context

Dw i'n nofio yn y cefnfor.

I'm swimming in the ocean.

A2

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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