Small fry and Urchin

Small fry noun - A young person of either sex.

Urchin and small fry are semantically related. in child topic. In some cases you can use "Urchin" instead a noun phrase "Small fry", when it comes to topics like very young person.

Urchin noun - A poor and often mischievous city child.

Small fry and urchin are semantically related. Sometimes you can use "Small fry" instead a noun "Urchin".