WordNet (r) 3.0 (2006):

documentation
    n 1: confirmation that some fact or statement is true through
         the use of documentary evidence [syn: documentation,
         certification, corroboration]
    2: program listings or technical manuals describing the
       operation and use of programs [syn: software documentation,
       documentation]
    3: documentary validation; "his documentation of the results was
       excellent"; "the strongest support for this view is the work
       of Jones" [syn: documentation, support]

Moby Thesaurus II by Grady Ward, 1.0:

77 Moby Thesaurus words for "documentation":
   account, affirmation, annals, attestation, authentication, backing,
   backing up, basis for belief, bearing out, body of evidence,
   bolstering, buttressing, catalog, certification, chain of evidence,
   chronicle, circumstantiation, clue, confirmation, correspondence,
   corroboration, corroboratory evidence, data, datum, evidence,
   exhibit, fact, facts, fortification, grounds, grounds for belief,
   history, indication, inventory, item of evidence, letters, list,
   manifestation, mark, material grounds, memorial, muniments,
   mute witness, piece of evidence, pipe roll, premises, proof,
   proving, proving out, ratification, reason to believe, record,
   recording, register, registry, reinforcement, relevant fact, relic,
   remains, roll, rolls, roster, rota, scroll, sign, strengthening,
   substantiation, support, supporting evidence, symptom, table,
   token, trace, undergirding, validation, verification, vestige



The Jargon File (version 4.4.7, 29 Dec 2003):

documentation
 n.

    The multiple kilograms of macerated, pounded, steamed, bleached, and
    pressed trees that accompany most modern software or hardware products (see
    also tree-killer). Hackers seldom read paper documentation and (too)
    often resist writing it; they prefer theirs to be terse and on-line. A
    common comment on this predilection is ?You can't grep dead trees?. See 
    drool-proof paper, verbiage, treeware.


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

documentation

    The multiple kilograms of macerated, pounded,
   steamed, bleached, and pressed trees that accompany most
   modern software or hardware products (see also tree-killer).
   Hackers seldom read paper documentation and (too) often resist
   writing it; they prefer theirs to be terse and on-line.  A
   common comment on this predilection is "You can't grep dead
   trees".

   See drool-proof paper, verbiage, treeware.

   [Jargon File]

   (2003-10-25)