caller

from WordNet (r) 3.0 (2006)

caller
    adj 1: providing coolness; "a cooling breeze"; "`caller' is a
           Scottish term as in `a caller breeze'"
    2: fresh; "caller fish"
    n 1: a social or business visitor; "the room was a mess because
         he hadn't expected company" [syn: {caller}, {company}]
    2: an investor who buys a call option
    3: the bettor in a card game who matches the bet and calls for a
       show of hands
    4: a person who announces the changes of steps during a dance;
       "you need a fiddler and a caller for country dancing" [syn:
       {caller}, {caller-out}]
    5: someone who proclaims or summons in a loud voice; "the
       callers were mothers summoning their children home for
       dinner"
    6: the person who convenes a meeting; "who is the caller of this
       meeting?"
    7: the person initiating a telephone call; "there were so many
       callers that he finally disconnected the telephone" [syn:
       {caller}, {caller-up}, {phoner}, {telephoner}]

from The Collaborative International Dictionary of English v.0.48

Caller \Call"er\, n.
   One who calls.
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Caller \Cal"ler\, a. [Scot.]
   1. Cool; refreshing; fresh; as, a caller day; the caller air.
      --Jamieson.
      [1913 Webster]

   2. Fresh; in good condition; as, caller berrings.
      [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

21 Moby Thesaurus words for "caller":
      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