Junior and Wingman

Junior noun - One who is of lower rank and typically under the authority of another.

Wingman and junior are semantically related. In some cases you can use "Wingman" instead a noun "Junior".

Wingman noun - The pilot who positions his aircraft outside and behind (on the wing of) the leader of a flying formation.

Junior and wingman are semantically related. Sometimes you can use "Junior" instead a noun "Wingman".