To inhale and exhale the smoke from a burning cigarette, cigar, pipe, etc.

“He's smoking his pipe.”

To inhale and exhale tobacco smoke.

“Do you smoke?”

To give off smoke.

“My old truck was still smoking even after the repairs.”

Giving off smoke.

Sexually attractive, usually referring to a woman.

“That woman is smoking!”

Showing great skill or talent.

“The band put on a smoking performance.”