1.A second or new entry; as, a reentry into public life.
2.(Law) A resuming or retaking possession of what one has lately foregone; applied especially to land; the entry by a lessor upon the premises leased, on failure of the tenant to pay rent or perform the covenants in the lease.
3.(Astronautics) To enter (the Earth's atmosphere) after having passed beyond the atmosphere, as when in orbit or returning from another planet.