Definitions:
to set light to again; to reignite or rekindle.

to bake or dry (tea leaves) for a second or subsequent time, typically in order to improve the quality and taste of the finished tea.

to fire (pottery) for second or subsequent time, typically in order to set a glaze which has been applied to repair or further decorate a piece.

to fire (a gun) again, especially after reloading.

to dismiss or discharge (a person) from employment for a second or subsequent time.