slick

US /slɪk/
UK /slɪk/
"slick" picture
1.

smooth and glossy

:
The road was slick with ice.
Her hair was pulled back in a slick ponytail.
2.

operating or performing with great efficiency and skill

:
The company launched a slick new advertising campaign.
He gave a slick presentation that impressed everyone.
1.

a patch of oil, especially on the surface of water

:
An oil slick spread across the ocean.
The environmental group worked to clean up the oil slick.
1.

make something smooth or glossy

:
He slicked his hair back with gel.
The rain slicked the pavement.