| Caller 1. (n.) One who calls. 2. (a.) Cool; refreshing; fresh; as, a caller day; the caller air. 3. (a.) Fresh; in good condition. Thesaurus Entries bellboy, bellhop, bellman, callboy, calling party, company, copyboy, errand boy, freeloader, frequenter, gate-crasher, guest, habitue, moocher, office boy, party, phoner, telephoner, uninvited guest, visitant, visitor |