WordNet (r) 3.0 (2006):

white paper
    n 1: a government report; bound in white [syn: white book,
         white paper]

Moby Thesaurus II by Grady Ward, 1.0:

73 Moby Thesaurus words for "white paper":
   Congressional Record, Hansard, Red Book, account, acquaintance,
   announcement, annunciation, blue book, briefing, bulletin,
   bulletin board, circular, communication, communique, data, datum,
   declaration, directory, dispatch, edict, encyclical, enlightenment,
   enunciation, evidence, facts, factual information, familiarization,
   gazette, gen, general information, green book, guidebook, handout,
   hard information, incidental information, info, information,
   instruction, intelligence, knowledge, light, manifesto, mention,
   message, notice, notification, official journal, position paper,
   presentation, proclamation, program, programma,
   promotional material, pronouncement, pronunciamento, proof,
   public notice, publication, publicity, release, report, sidelight,
   state paper, statement, the dope, the goods, the know, the scoop,
   transmission, ukase, white book, word, yellow book



The Free On-line Dictionary of Computing (30 December 2018):

white paper

    A short treatise whose purpose is to educate
   industry customers.  See, e.g., Architecture Neutral
   Distribution Format.

   (1997-10-24)