"The doctor and the student."
Translation:An dochtúir agus an dalta.
I was presented with a multiple choice question (choose ALL correct answers). I chose, "An dochtúir agus an dalta." It was marked incorrect, as apparently "An dochtúir agus an mac léinn." also means "The doctor and the student"? This is the first I've seen of the term: "mac léinn". :-/
Dochtúir is masculine, and masculine nouns in the nominative case aren’t lenited after an.
Masculine nouns in the genitive case are lenited after an, but dochtúra (the genitive case of dochtúir ) still wouldn’t lenite after an, because nouns of any gender or case that begin with D, S, or T don’t lenite after an.
Some possessive adjectives (mo, do, and a when it means “his”) will lenite nouns like dochtúir and daltaí, whether masculine or feminine, singular or plural, and even if they begin with D, S, or T.
A singular noun following an will not be lenited if it begins with D, S, or T, regardless of the noun’s gender or case. Other singular nouns following an will not be lenited if they’re masculine nominative, but will be lenited if they’re masculine genitive or feminine nominative.