ADJ. big The company needs to focus on its biggest clients. | new | potential, prospective | established, existing, regular | business, corporate | private
VERB + CLIENT serve A new branch has been opened to serve clients in East London. | act for, represent | take on She's so busy that she's not taking on any new clients. | attract a campaign to attract new clients
PREP. on behalf of ~ On behalf of my client, I would like to remind you of your obligations in this matter.