Bird dog and Nurse practitioner

Bird dog noun - A gun dog trained to locate or retrieve birds.

Nurse practitioner and bird dog are semantically related. In some cases you can use "Nurse practitioner" instead a noun phrase "Bird dog".

Nurse practitioner noun - A registered nurse who has received special training and can perform many of the duties of a physician.

Bird dog and nurse practitioner are semantically related. Sometimes you can use "Bird dog" instead a noun phrase "Nurse practitioner".