What is the definite [article] for "casa" ?
señor
3 Answers
Se casa is the third person congugation of the verb casarse which means to marry i.e. Voy a casarme con Maria = I am going to marry maria. Maria va a casarse conmigo = Maria is going to marry me ¿y tu? ¿Con quién vas a casarte? = And you? Who are you going to marry?
I don't understand your question. Maybe you can tell us more about what a "definite" is. Is it possible you meant "infinitive"? If so, there is no infinitive for "casa" as a noun. Casa as a verb form is 3rd person singular Present Indicative of "Casar"
If you want to know the "definite article" that should accompany "casa" (meaning house), it is "la" i.e. La casa.
casa means house