Definition of grooms:
(n) :
A man who is about to marry.
(n) :
A person who looks after horses.
(v) :
To attend to one's appearance and clothing.
(v) :
(transitive) To care for (horses or other animals) by brushing and cleaning them.
(n) :
A brushing or cleaning, as of a dog or horse.
(v) :
(transitive) To prepare (someone) for an event