CUSTOMER Synonyms: 79 Similar and Opposite Words - Merriam-Webster
https://www.merriam-webster.com/thesaurus/customer
WebSynonyms for CUSTOMER: client, patron, guest, user, buyer, consumer, punter, account; Antonyms of CUSTOMER: seller, merchant, vendor, broker, vender, shopkeeper, tradesman, fence.
DA: 42 PA: 42 MOZ Rank: 65