How do you spell Sleek

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