slick

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Smooth, glossy, and slippery.
• adjective Deftly executed; adroit.
• adjective Confident and effortlessly effective, especially in being persuasive.
• adjective Superficially attractive or plausible but lacking depth or soundness.
• adjective Slang Excellent; wonderful.
• noun A smooth or slippery surface or area.
• noun A floating film of oil.
• noun A trail of floating material.
• noun An implement used to make a surface slick, especially a chisel used for smoothing and polishing.
• noun Informal A magazine, usually of large popular readership, printed on high-quality glossy paper.
• noun A smooth, treadless tire, often used for racing.
• noun Slang An unarmed military aircraft, especially a helicopter.
• transitive verb To make smooth, glossy, or oily.
• transitive verb Informal To make neat, trim, or tidy.

from The Century Dictionary.

• See sleek.
• noun In metallurgy, ore in a state of fine subdivision: as sometimes used, nearly synonymous with slimes.

from the GNU version of the Collaborative International Dictionary of English.

• adjective Sleek; smooth.
• noun A slick, or smooth and slippery, surface or place; a sleek.
• transitive verb To make sleek or smoth.
• noun (Joinery) A wide paring chisel.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective Slippery due to a covering of liquid; often used to describe appearances.
• adjective Appearing expensive or sophisticated.
• adjective Superficially convincing but actually untrustworthy.
• adjective Clever, making an apparently hard task easy; often used sarcastically.
• adjective US, West Coast slang Extraordinarily great or special.
• noun A covering of liquid, particularly oil.
• noun sports, automotive A tire with a smooth surface instead of a tread pattern, often used in auto racing.
• noun US, military slang A helicopter.
• noun printing A camera-ready image to be used by a printer. The "slick" is photographed to produce a negative image which is then used to burn a positive offset plate or other printing device.
• noun A wide paring chisel used in joinery.
• verb To make slick

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

• noun a magazine printed on good quality paper
• verb give a smooth and glossy appearance
• adjective having a smooth, gleaming surface reflecting light
• noun a slippery smoothness
• noun a film of oil or garbage floating on top of water
• noun a trowel used to make a surface slick
• adjective marked by skill in deception
• verb make slick or smooth
• adjective made slick by e.g. ice or grease
• adjective having only superficial plausibility