To initiate (a conversation, debate etc.)
To provide electrification.
to make more exotic or fun
to rekindle
To light up; light a cigarette or start smoking a pipe, bong, etc.
To start something with somebody else, such as a conversation or relationship.
To start something, usually playing live music.
To raise (as sheet metal), in making dishes, pans, etc., by blows or pressure in a die.