Open English Wordnet
Nouns
(n)caller, companya social or business visitor“the room was a mess because he hadn't expected company” (n)calleran investor who buys a call option (n)callerthe bettor in a card game who matches the bet and calls for a show of hands (n)caller, caller-outa person who announces the changes of steps during a dance“you need a fiddler and a caller for country dancing” (n)callersomeone who proclaims or summons in a loud voice“the callers were mothers summoning their children home for dinner” (n)callerthe person who convenes a meeting“who is the caller of this meeting?” Adjectives
(s)callerproviding coolness“`caller' is a Scottish term as in `a caller breeze'”