This is the 8724th most frequent Turkish word.
sandviçinizi
"Your sandwich."
In this sentence, 'sandviçinizi' is used in the accusative form to refer to 'your sandwich' that belongs to the individual being addressed.
Sandviçinizi masada unuttunuz.
You forgot your sandwich on the table.
Here, 'sandviçinizi' refers to 'your sandwich,' and the possessive suffix emphasizes ownership in the context of asking about its creation.
Sandviçinizi nasıl yaptınız?
How did you make your sandwich?
In this example, 'sandviçinizi' again denotes 'your sandwich,' now in the form of a direct object being requested by someone.