The Collaborative International Dictionary of English v.0.48:

Reader \Read"er\ (r[=e]d"[~e]r), n. [AS. r[=ae]dere.]
   1. One who reads. Specifically:
      (a) One whose distinctive office is to read prayers in a
          church.
      (b) (University of Oxford, Eng.) One who reads lectures on
          scientific subjects. --Lyell.
      (c) A proof reader.
      (d) One who reads manuscripts offered for publication and
          advises regarding their merit.
          [1913 Webster]

   2. One who reads much; one who is studious.
      [1913 Webster]

   3. A book containing a selection of extracts for exercises in
      reading; an elementary book for practice in a language; a
      reading book.
      [1913 Webster]

WordNet (r) 3.0 (2006):

reader
    n 1: a person who enjoys reading
    2: someone who contracts to receive and pay for a service or a
       certain number of issues of a publication [syn: subscriber,
       reader]
    3: a person who can read; a literate person
    4: someone who reads manuscripts and judges their suitability
       for publication [syn: reviewer, referee, reader]
    5: someone who reads proof in order to find errors and mark
       corrections [syn: proofreader, reader]
    6: someone who reads the lessons in a church service; someone
       ordained in a minor order of the Roman Catholic Church [syn:
       lector, reader]
    7: a public lecturer at certain universities [syn: lector,
       lecturer, reader]
    8: one of a series of texts for students learning to read

Moby Thesaurus II by Grady Ward, 1.0:

185 Moby Thesaurus words for "reader":
   Bible clerk, Bible reader, Boanerges, Flexowriter typewriter,
   Teleplotter, abecedarium, abecedary, achromatic lens, acolyte,
   acolytus, almoner, alphabet book, alphabetical printer, anagnost,
   assistant, assistant professor, associate, associate professor,
   astigmatic lens, battledore, beadle, bedral, burning glass, camera,
   capitular, capitulary, casebook, chalk talker, choir chaplain,
   churchwarden, city editor, clerk, coated lens, columnist,
   concave lens, concavo-convex lens, condenser, convex lens,
   copy chief, copy editor, copyholder, copyman, copyreader,
   correspondent, cub reporter, deacon, deaconess, diaconus,
   diaskeuast, digital graph plotter, discourser, diseur, diseuse,
   doorkeeper, editor, editorial writer, elder, elderman, elocutioner,
   elocutionist, emeritus, exercise book, exorcist, exorcista,
   expositor, expounder, eyeglass, eyepiece, feature editor,
   foreign correspondent, gazetteer, glass, gradus, grammar,
   hand lens, hard copy, holy orders, homilist, hornbook,
   improvisator, improvvisatore, instructor, interviewer, journalist,
   lay elder, lay reader, leader writer, lector, lecturer, leg man,
   lens, magnetic recorder, magnetic tape, magnifier,
   magnifying glass, major orders, managing editor, manual,
   manual of instruction, meniscus, microcards, microfiche, microfilm,
   minor orders, news editor, newsman, newspaperman, newspaperwoman,
   newswriter, object glass, objective, objective prism, ocular,
   oscillograph recorder, oscilloscope, ostiarius, own correspondent,
   paragrapher, paragraphist, parish clerk, praelector, preacher,
   precentor, presbyter, pressman, priest, primer, printout, prism,
   professor, professor emeritus, proofreader, publicist, pulpitarian,
   pulpiteer, punch cards, punched tape, reading glass, readout,
   recitationist, reciter, recorder, relay register, reporter,
   retired professor, reviser, rewrite man, rewriter, ruling elder,
   sacrist, sacristan, schoolbook, sermoner, sermonist, sermonizer,
   sexton, shames, sidesman, slotman, sob sister,
   special correspondent, speller, spelling book, sports editor,
   subdeacon, subdiaconus, subeditor, succentor, suisse, t,
   tape reader, teaching elder, telephoto lens, teletypewriter, text,
   thurifer, toric lens, tutor, varifocal lens, verger, vergeress,
   visiting professor, war correspondent, workbook, zoom lens



U.S. Gazetteer Places (2000):

Reader, AR -- U.S. town in Arkansas
   Population (2000):    82
   Housing Units (2000): 43
   Land area (2000):     2.340617 sq. miles (6.062169 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    2.340617 sq. miles (6.062169 sq. km)
   FIPS code:            58400
   Located within:       Arkansas (AR), FIPS 05
   Location:             33.752444 N, 93.099569 W
   ZIP Codes (1990):     71726
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Reader, AR
    Reader