(1) Emancipation.   (2) Beatitude.   (3) No rebirth.   (4) Being free from taking birth in this world.  
(5) Liberation.   (6) Mukti.

Mukti is of five kinds -
(1) Saayujya Mukti (merging with God),
(2) Saaroopya Mukti (Conforming into God's image),
(3) Saameepya Mukti (Coming close to God without merging into Him),
(4) Saalokya Mukti (Living with God in His Lok), and
(5) Jeevan Mukti (Liberated while alive).
[Aangiras, p 289-290)

There are four means of Mukti (emancipation) - Brahm Gyaan, Shraaddh in Gayaa, death in Goshaalaa (where cows are kept), and living in Kurukshetra.
(Naarad Puraan, p 655)

According to Upanishad, the final stage of liberation can be attained only through Paraa Vidyaa, or Brahm Vidyaa.

According to Padm Puraan, 5/35, Going to Param Dhaam is called Moksh, because once a Jeev is gone there, it never comes back on Prithvi, and that is why it is called Moksh