Definition - What does Satsangi mean?
Satsangi is a Sanskrit word meaning “seeker of truth” or “one associated with truth.” Some religious groups use the term to mean a person devoted to a specific dogma, particularly that religion's dogma.
In the traditional sense, a satsangi is someone who joins in satsang, or a community of people gathered for the purpose of spiritual dialogue and seeking spiritual truth. A satsang can take many forms and may include discussion, chanting, meditation and music.
Yogapedia explains Satsangi
A satsangi is also associated with sattva, or the inner quality of purity and goodness. As a seeker of truth, a satsangi accepts the truth from wherever it comes and in whatever form it takes.
The concept of a satsang transcends religious boundaries, but is common practice in Hinduism, Buddhism, Sikhism and Jainism. Satsang means “being in the company of truth." While it can refer to any group of truth-seekers (satsangis), in these traditional Indian philosophies, it often describes a gathering with a guru or other wise, spiritually mature person.