caller (Noun) — A social or business visitor.
caller (Noun) — An investor who buys a call option.
caller (Noun) — The bettor in a card game who matches the bet and calls for a show of hands.
caller (Noun) — A person who announces the changes of steps during a dance. ex. "you need a fiddler and a caller for country dancing"
caller (Noun) — Someone who proclaims or summons in a loud voice. ex. "the callers were mothers summoning their children home for dinner"
caller (Noun) — The person who convenes a meeting. ex. "who is the caller of this meeting?"
caller (Noun) — The person initiating a telephone call. ex. "there were so many callers that he finally disconnected the telephone"
caller (Adjective) — Providing coolness. ex. "'caller' is a Scottish term as in 'a caller breeze'"
caller (Adjective) — Fresh. ex. "caller fish"