油

The sides of the child's mouth were stained with grease.

All the oil had been oozing away during our journey.

My bicycle needs some oil.

oily smell

skim the fat from the soup; skim the soup to remove the fat

put grease on one's hair

lubricate a machine

fry; be cooked in hot fat/oil

cooking oil

oil slick

animal oil

refine oil

an oil slick; a layer/film of oil

The floor is freshly painted.

paint garbage cans/the table blue

paint over the furniture

Careful! You'll smear/grease my shirt.

This guy is much too slippery/tricky/crafty.

He is an old/a dab hand at playing cards.

He is glib-tongued.