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clas

cloister

NounMasculine (gwrywaidd)dict/klaːs/

"clas" means "cloister" in Welsh (masculine noun). Pronounced /klaːs/. Mutation forms: Treiglad Meddal → glas, Treiglad Trwynol → nghlas, Treiglad Llaes → chlas.

Mutation forms

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

MutationForm
Base formclas
Treiglad Meddalglas
Treiglad Trwynolnghlas
Treiglad Llaeschlas

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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