rapper

from The American Heritage® Dictionary of the English Language, 4th Edition

• n. One that raps or strikes, especially a door knocker.
• n. Music One who performs rap.

from Wiktionary, Creative Commons Attribution/Share-Alike License

• n. One who, or that which, raps or knocks; specifically, the knocker of a door.
• n. A performer of rap music
• n. A forcible oath or lie.
• n. obsolete: Scottish English word for "sword."
• n. A flexible strip of metal, 45-60cm long, with handles at each end, used for Northumbrian rapper sword dancing.
• n. A mechanical, or later electric, signalling device formerly used in the mines of north-eastern England to signal to the engineman that the cages carrying men or coals up and down the shaft were ready to be raised or lowered.

from the GNU version of the Collaborative International Dictionary of English

• n. One who, or that which, raps or knocks; specifically, the knocker of a door.
• n. A forcible oath or lie.
• n. A musician specializing in rap music.

from The Century Dictionary and Cyclopedia

• n. One who raps or knocks; specifically, a spirit-rapper.
• n. The knocker of a door.
• n. In coal-mining, a lever with a hammer attached at one end, placed at the mouth of a shaft or incline for giving signals to the banksman, by rapping on an iron plate.
• n. An extravagant oath or lie; a “whopper.” See to rap out , under rap, transitive verb

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• n. a device (usually metal and ornamental) attached by a hinge to a door
• n. someone who performs rap music