This is the 11527th most frequent Turkish word.
evinizi
"Your house" (possessive form).
The possessive second-person plural suffix '-iniz' is used with the word 'ev', forming 'eviniz' to express 'your house'.
Evinizi çok beğendim.
I really liked your house.
Here, 'eviniz' is used to indicate possession ('your house') and is placed as the object of the verb, with the accusative suffix '-i' attached.
Evinizi boyadınız mı?
Have you painted your house?
In this sentence, 'eviniz' again indicates possession ('your house') and is the direct object of the action described.