Mawson, C.O.S., ed. (1870–1938). Roget’s International Thesaurus. 1922.

Class IV. Words Relating to the Intellectual Faculties
Division (I) Formation of Ideas
Section II. Precursory Conditions and Operations

462. Answer.

   NOUN:ANSWER, response, reply, replication, riposte or ripose, subjoinder, rejoinder, retort, repartee; rescript, rescription [archaic]; antiphon, antiphony; acknowledgment; password; echo; counterstatement, counterblast, countercharge, contradiction.
  [LAW] defense, plea, surrebutter, surrejoinder, reply, rejoinder, rebutter.
  SOLUTION (explanation) [See Interpretation]; discovery [See Judgment]a; rationale (cause) [See Cause]; clew or clue (indication) [See Indication].
  œdipus; oracle [See Oracle]; return (record) [See Record].
   VERB:ANSWER, respond, reply, rebut, riposte or ripost, retort, rejoin; give answer, return for answer; acknowledge, echo.
  [LAW] defend, plead, surrebut, surrejoin, rebut, reply.
  EXPLAIN (interpret) [See Interpretation]; solve (unriddle) [See Interpretation]; discover [See Judgment]a; fathom, hunt out (inquire) [See Inquiry]; satisfy, set at rest, determine.
   ADJECTIVE:ANSWERING &c. v.; responsive, respondent; antiphonal; Œdipean, oracular; conclusive.
   ADVERB:FOR THIS REASON; because (cause) [See Cause]; on the scent, on the right scent.