A layman is someone who doesn't have special knowledge or expertise about something.
When people talk about experts and non-experts, they often use the word "layman" to describe someone with everyday experience and no specialized training. For example, if you ask a doctor to explain a medical condition to a patient, the doctor might be happy to speak in simple terms for a layman like the patient. This means the patient doesn't need to understand all the technical details.
This is different from an expert who has studied or worked in that field and can give more detailed information.
Layperson, someone who is not an ordained cleric or member of the clergy.
