Separatism is the advocacy of cultural, ethnic, tribal, religious, racial, governmental, or gender separation from the larger group. As with secession, separatism conventionally refers to full political separation. Groups simply seeking greater autonomy are usually not considered separatists. Some discourse settings equate separatism with religious segregation, racial segregation, or sex segregation, while other discourse settings take the broader view that separation by choice may serve useful purposes and is not the same as government-enforced segregation. There is some academic debate about this definition, and in particular how it relates to secessionism, as has been discussed online.

Secession is the formal withdrawal of a group from a political entity. The process begins once a group proclaims an act of secession. A secession attempt might be violent or peaceful, but the goal is the creation of a new state or entity independent of the group or territory from which it seceded. Threats of secession can be a strategy for achieving more limited goals.