preposition
1. : to the special advantage or benefit of
there shall be no discrimination in favor of, or to the prejudice of, either race — American Guide Series: North Carolina
:as
a. : in accord or sympathy with : on the side of
in favor of the group working for greater sanitation
b. : for the acquittal of
the jury returned in favor of the man accused of robbery
: in support of
the court's decision was in favor of the corporation that brought the suit
2. : to the order of — used of a check or other draft