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"O" is a noun which is often translated as "la o", and "an" is an indefinite article which is often translated as "un". Learn more about the difference between "o" and "an" below.
o()
A noun is a word referring to a person, animal, place, thing, feeling, or idea (e.g., man, dog, house).
an()
An indefinite article is a word that indicates that a noun is not specific (e.g., a girl).
1. (general)
A preposition is a word that indicates the relationship between a noun and another word (e.g., He ran through the door.).
