Yakitori is skewered and grilled.

Mr. Kushi is my best friend.

He sent me a 'kushi' (slang for a short message or information).

Kushiyaki is one of the traditional dishes in Japan.

Where did my comb go?

She combed her hair with a comb.

He made a presentation at an international conference, making excellent use of his English.

He burned the paper.

He excels in the ability to command English.

He made excellent use of that opportunity to fully demonstrate his abilities.