call box call·box uncommon noun 1. booth for using a telephone Synonymstelephone boothphone boothcall boxtelephone boxtelephone kiosk 2. a numbered compartment in a post office where mail is put to be called for Synonymspost-office boxPOBcall boxletter box Related words Broader terms compartmentbooth WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
