The Collaborative International Dictionary of English v.0.48:

bellboy \bellboy\ n.
   someone employed as an errand boy and luggage carrier around
   hotels.

   Syn: bellman, bellhop.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

bellboy
    n 1: someone employed as an errand boy and luggage carrier
         around hotels [syn: bellboy, bellman, bellhop]

Moby Thesaurus II by Grady Ward, 1.0:

33 Moby Thesaurus words for "bellboy":
   Ganymede, Hebe, airline hostess, airline stewardess, attendant,
   batman, bellhop, bellman, bootblack, boots, cabin boy, caddie,
   callboy, caller, chore boy, copyboy, cupbearer, errand boy,
   errand girl, footboy, gofer, hostess, office boy, office girl,
   orderly, page, squire, steward, stewardess, tender, trainbearer,
   usher, yeoman