"The Atlantic Ocean is big."

Translation: Mae Môr Iwerydd yn fawr.

[StephenDunscombe]

It offered me "Mae'r Môr Iwerydd" and "Mae Môr Iwerydd", and dinged me for not checking both. Is the definite article optional here?

[daschaich]

Had the same question myself, and then saw ibisc's comment here: "With proper names such as 'The Atlantic Ocean', 'The National Assembly of Wales', and so on, y is not usually included in the Welsh."

[DesertGlass]

No "The" ?

[eAnnAe]

Yes. It's the 'r after Mae.