layperson
/ˈleɪpərˌsɒn/Definitions
1. noun
A person who is not a professional or expert in a particular field or activity; an ordinary person.
“The doctor explained the medical procedure in a way that even the layperson could understand.”
2. noun
A person who is not a member of a particular profession or group.
“The judge tried to explain the law to the layperson on the jury.”