Disembodied spirit and Familiar spirit

Disembodied spirit noun - Any incorporeal supernatural being that can become visible (or audible) to human beings.

Familiar spirit and disembodied spirit are semantically related. In some cases you can replace phrase "Familiar spirit" with "Disembodied spirit", this phrases are similar.

Familiar spirit noun - A spirit (usually in animal form) that acts as an assistant to a witch or wizard.

Disembodied spirit and familiar spirit are semantically related. Sometimes you can use "Disembodied spirit" instead a noun phrase "Familiar spirit".