trapper

One who traps animals; one who makes a business of trapping animals, for their pelts, meat, etc.

(mining) A (usually, child) worker who opens and shuts a door in a gallery or level of a mine, to manage ventilation and access.

An ornamental covering for a horse. See trapping and caparison.

(slang) A drug dealer. See also trap house.

(slang) A performer of trap music.