This is the 1011th most frequent Swedish word.
ditt
"Your" (possessive form).
In this context, 'ditt' is used to describe possession of the noun 'meddelande', which is neuter gender.
Jag såg ditt meddelande.
I saw your message.
'Ditt' is used to indicate possession for the neuter gender noun 'lån', expressing ownership.
Ta hand om ditt lån.
Take care of your loan.
The word 'ditt' is the possessive pronoun used for 'your' and matches the neuter gender noun 'hus'.