Nonperson and Small fry

Nonperson noun - A person regarded as nonexistent and having no rights; a person whose existence is systematically ignored (especially for ideological or political reasons).

Small fry and nonperson are semantically related. In some cases you can use "Small fry" instead a noun "Nonperson".

Small fry noun - A young person of either sex.

Nonperson and small fry are semantically related. Sometimes you can use "Nonperson" instead a noun phrase "Small fry".