Source : Webster's Revised Unabridged Dictionary (1913)

Slick \Slick\, n.
   A slick, or smooth and slippery, surface or place; a sleek.

         The action of oil upon the water is upon the crest of
         the wave; the oil forming a slick upon the surface
         breaks the crest.                        --The Century.

Slich \Slich\, Slick \Slick\, n. (Metal.)
   See {Schlich}.

Slick \Slick\, a. [See {Sleek}.]
   Sleek; smooth. ``Both slick and dainty.'' --Chapman.

Slick \Slick\, v. t.
   To make sleek or smoth. ``Slicked all with sweet oil.''
   --Chapman.

Slick \Slick\, n. (Joinery)
   A wide paring chisel.

Source : WordNet®

slick
     v 1: make slick or smooth [syn: {sleek}]
     2: give a smooth and glossy appearance; "slick one's hair"
        [syn: {slick down}, {sleek down}]

slick
     adj 1: having a smooth, gleaming surface; "glossy auburn hair";
            "satiny gardenia petals"; "sleek black fur"; "silken
            eyelashes"; "silky skin"; "a silklike fabric"; "slick
            seals and otters" [syn: {glossy}, {satiny}, {sleek}, {silken},
             {silky}, {silklike}]
     2: made slick by e.g. ice or grease; "sidewalks slick with
        ice"; "roads are slickest when rain has just started and
        hasn't had time to wash away the oil"
     3: having only superficial plausibility; "glib promises"; "a
        slick commercial" [syn: {glib}, {pat}]
     4: marked by skill in deception; "cunning men often pass for
        wise"; "deep political machinations"; "a foxy scheme"; "a
        slick evasive answer"; "sly as a fox"; "tricky Dik"; "a
        wily old attorney" [syn: {crafty}, {cunning}, {dodgy}, {foxy},
         {guileful}, {knavish}, {sly}, {tricksy}, {tricky}, {wily}]

slick
     n 1: a slippery smoothness; "he could feel the slickness of the
          tiller" [syn: {slickness}, {slipperiness}, {slip}]
     2: a magazine printed on good quality paper [syn: {slick
        magazine}]
     3: a film of oil or garbage floating on top of water
     4: a trowel used to make a surface slick