handler

noun

1. a person or thing that handles.
2. Boxing. a person who assists in the training of a fighter or is the fighter’s second during a fight.
3. a person who exhibits a dog in a bench show or field trial.

noun

1. a person, esp a police officer, in charge of a specially trained dog
2. a person who handles some specified thinga baggage handler
3. a person who holds or incites a dog, gamecock, etc, esp in a race or contest
4. the trainer or second of a boxer

noun

1. Daniel . born 1970, US writer for older children, best known for the macabre humour of his A Series of Unfortunate Events, a sequence of books written in the persona of Lemony Snicket