Self-governing and Self-government

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

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

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