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bywgraffiadur

biographical dictionary

NounMasculine (gwrywaidd)dict/bɪu̯ɡrafˈjadɨ̞r/

"bywgraffiadur" means "biographical dictionary" in Welsh (masculine noun). Pronounced /bɪu̯ɡrafˈjadɨ̞r/. Mutation forms: Treiglad Meddal → fywgraffiadur, Treiglad Trwynol → mywgraffiadur.

Mutation forms

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

MutationForm
Base formbywgraffiadur
Treiglad Meddalfywgraffiadur
Treiglad Trwynolmywgraffiadur

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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