Guthan as an alternative for phone surely?
Yes. Please report it if it doesn't take it.
We are already working on adding guthán and other synonyms across the whole course.
Why isn't don lá accepted?
Never learned 'ar feadh' in any lesson before. Will this be taught and shown pronunciation?
Why is "ar feadh an lae" in the genitive case?
Something like "length of the day"/"the day's length"? That would be genitive.