Is “Cork” a Scrabble word?

1.The bark of the cork oak, which is very light and porous and used for making bottle stoppers, flotation devices, and insulation material.

2.A bottle stopper made from this or any other material.

“Snobs feel it's hard to call it wine with a straight face when the cork is made of plastic.”

3.An angling float, also traditionally made of oak cork.

1.To seal or stop up, especially with a cork stopper.

2.To blacken (as) with a burnt cork

3.To leave the cork in a bottle after attempting to uncork it.