This is the 18060th most frequent Polish word.
żonie
"Żonie" means "to (the) wife" in English.
The word 'żonie' is the dative form of 'żona', used here to indicate the recipient of an action, clarifying the indirect object.
On podarował żonie kwiaty.
He gave flowers to his wife.
In this case, 'żonie' reflects an incorrect structure; correctly should be 'żoną', with 'z' denoting accompaniment and prompting the instrumental case.
Rozmawiałem z żonie o planach na weekend.
I talked with my wife about weekend plans.
Here, 'żonie' is again in the dative form, indicating the party receiving trust or responsibility.