A caller is someone who initiates a call, either by phone or in person. The crossword solutions for the term caller include COMPANY (7 letters), VISITANT (8 letters), GUEST (5 letters), VISITOR (7 letters), UMP (3 letters), REF (3 letters), AVON (4 letters), namer (5 letters), and phoner (6 letters). COMPANY refers to a business entity, VISITANT is a formal term for a VISITOR, GUEST is a polite term for a VISITOR, VISITOR is a more general term for someone who visits, UMP is an abbreviation for umpire, REF is an abbreviation for referee, AVON is an abbreviation for AVON representative, namer is someone who gives a name to something, and phoner is someone who makes a phone call.