Definition
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arbenigol
Person sy'n meddu ar wybodaeth a sgiliau arbennig mewn maes penodol.
A person who possesses special knowledge and skills in a specific field.
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Mae'n arbenigol yn y maes meddygaeth.
He is an expert in the field of medicine.
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Gofynnais i am gyngor gan arbenigol ar greu busnes.
I asked for advice from an expert on starting a business.
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Mae hi'n arbenigol mewn peirianneg, ac mae llawer o bobl yn ymddiried ynddi.
She is an expert in engineering, and many people trust her.