IPA: /nɒnˈkʌstəmə/
KK: /nɑnˈkʌstəmər/
A person or entity that does not purchase goods or services from a business.
The company is trying to convert noncustomers into loyal clients.
Noncustomer → It is formed from "non-" (meaning not) and "customer" (from Old French *custumer*, meaning a person who buys goods or services). The word "noncustomer" refers to a person who does not buy goods or services from a particular business.
Think of 'non-' meaning 'not' to remember that a 'noncustomer' is someone who does not buy from a business.