Self-governing and Self-rule

Self-governing adjective - Not being under the rule or control of another.

Self-rule and self-governing are semantically related. In some cases you can use "Self-rule" instead a noun phrase "Self-governing".

Self-rule noun - Government in which the supreme power is held by the people and used by them directly or indirectly through representation.

Self-governing and self-rule are semantically related. Sometimes you can use "Self-governing" instead a noun phrase "Self-rule".