मोक्ष, mokṣa

The liberation of soul from the sufferings of the world. In many doctrines of Hinduism and Buddhism often means freedom from the cycle of death and rebirth.

One of four goals (Purushartha) of human`s life.

The liberation in the broad sense.
This term can be found in Ayurveda. For example, rakta-moksha means "bloodletting".

Moksha is liberation of soul from the limitations and different dependencies (sanskaras, malas etc.). This way Nirvana and moksha are different names of the same process.

Source: "Introduction to Natha-yoga" by Mahant Avedyanath