(1):
(n.) A slick.
(2):
(superl.) Having an even, smooth surface; smooth; hence, glossy; as, sleek hair.
(3):
(n.) That which makes smooth; varnish.
(4):
(adv.) With ease and dexterity.
(5):
(superl.) Not rough or harsh.
(6):
(v. t.) To make even and smooth; to render smooth, soft, and glossy; to smooth over.