pre-starter, appetizer / introduction, way in, opening act

blastoff, ignition, firing, initiation

execution (the act of putting to death)

commissioning

Alternative spelling of mise en page

(intransitive) to save one's own skin / (transitive with à) to save someone's bacon, to pull someone's bacon out of the fire

inhumation, burial, committal (act of committing a body to the grave at a burial)

sidelining, act of putting away, shunting

(ice hockey) face-off

casketing (act of placing into a coffin, of putting in a coffin)