This is the 330th most frequent Danish word.
mit
"My."
The word 'mit' is a possessive pronoun in first person singular (my/mine) and is used here to describe possession of a neuter singular noun 'hus' (house).
Mit hus er stort og lyst.
My house is big and bright.
Here, 'mit' is used as a possessive pronoun, denoting ownership of the neuter singular noun 'ur' (watch).
Jeg har mistet mit ur.
I have lost my watch.
In this sentence, 'mit' serves as a possessive pronoun to specify possession of the neuter singular noun 'yndlingsprogram' (favorite show).