Definitionsregional note: in AM, also use reentry
1. uncountable noun
Re-entry is the act of returning to a place, organization, or area of activity that you have
⇒ The house has been barred and bolted to prevent re-entry.
⇒ The military men are contemplating a re-entry into politics.
2. uncountable noun
Re-entry is used to refer to the moment when a spacecraft comes back into the Earth's atmosphere after being in space.
⇒ The station would burn up on re-entry into the Earth's atmosphere.
COBUILD Advanced English Dictionary. Copyright © HarperCollins Publishers