Other determiners include the definite article (the), possessive adjectives (my, his, our), possessive nouns (Joe’s, mother’s), and quantifiers (some, any).
Incorrect I’d like a milk with my dinner.
Correct I’d like milk with my dinner.
Correct I’d like a glass of milk with my dinner.
Depending on context, a noun can be either countable or uncountable.
Correct We need a light in this room.
Correct We need some light in this room.