I. noun
( -s )
Etymology: partly from Middle English, from stage (I) + -ing; partly from gerund of stage (II)
1. : scaffolding
a staging on which he was working — Springfield (Massachusetts) Daily News
2.
a. : the business of running stagecoaches
b. : the act of journeying in stagecoaches
3. : the act or art of putting a play on the stage
the steadily evolving character development which is so vital to this kind of staging — Henry Hewes
4. : division of a process (as the expansion of steam in a turbine) into a series of steps or stages
5. : the moving of troops or materiel forward in several stages or the assembling of troops or materiel in transit in a particular place
II. noun
: the disengaging and discarding of a burned-out rocket unit from a space vehicle during flight