The Collaborative International Dictionary of English v.0.48:

Relate \Re*late"\ (r?-l?t"), v. t. [imp. & p. p. Related; p.
   pr. & vb. n. Relating.] [F. relater to recount, LL.
   relatare, fr. L. relatus, used as p. p. of referre. See
   Elate, and cf. Refer.]
   1. To bring back; to restore. [Obs.]
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            Abate your zealous haste, till morrow next again
            Both light of heaven and strength of men relate.
                                                  --Spenser.
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   2. To refer; to ascribe, as to a source. [Obs. or R.]
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   3. To recount; to narrate; to tell over.
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            This heavy act with heavy heart relate. --Shak.
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   4. To ally by connection or kindred.
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   To relate one's self, to vent thoughts in words. [R.]
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   Syn: To tell; recite; narrate; recount; rehearse; report;
        detail; describe.
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The Collaborative International Dictionary of English v.0.48:

Relate \Re*late"\, v. i.
   1. To stand in some relation; to have bearing or concern; to
      pertain; to refer; -- with to.
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            All negative or privative words relate positive
            ideas.                                --Locke.
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   2. To make reference; to take account. [R. & Obs.]
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            Reckoning by the years of their own consecration
            without relating to any imperial account. --Fuller.
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WordNet (r) 3.0 (2006):

relate
    v 1: make a logical or causal connection; "I cannot connect
         these two pieces of evidence in my mind"; "colligate these
         facts"; "I cannot relate these events at all" [syn:
         associate, tie in, relate, link, colligate, link
         up, connect] [ant: decouple, dissociate]
    2: be relevant to; "There were lots of questions referring to
       her talk"; "My remark pertained to your earlier comments"
       [syn: refer, pertain, relate, concern, come to,
       bear on, touch, touch on, have-to doe with]
    3: give an account of; "The witness related the events"
    4: be in a relationship with; "How are these two observations
       related?" [syn: relate, interrelate]
    5: have or establish a relationship to; "She relates well to her
       peers"

Moby Thesaurus II by Grady Ward, 1.0:

190 Moby Thesaurus words for "relate":
   add up, affect, affirm, allege, allegorize, ally, analogize,
   announce, answer, answer to, appertain, appertain to, apply,
   apply to, approach, ascribe, assert, asseverate, assign,
   assimilate, associate, aver, balance, be OK, be into, bear,
   bear on, bear upon, belong to, bind, bracket, break the news,
   bring into analogy, bring into comparison, bring word, cast up,
   cipher up, combine, communicate, communicate with, compare,
   compare and contrast, compare with, comprehend, concern, confront,
   conjoin, connect, contact, contrast, coordinate, cope with,
   correlate, correspond, correspond to, count up, counterpose,
   couple, credit, deal with, declare, delineate, describe, detail,
   dig, divulge, do, do the job, draw a comparison, draw a parallel,
   empathize, equate, establish connection, fable, fabulize,
   fictionalize, figure up, fill the bill, fit, foot up, get into,
   get to, give a report, give tidings of, grasp, handle,
   have connection with, identify, identify with, impart, impute,
   inform, interest, interrelate, interrogate, inventory, involve,
   itemize, join, liaise with, liken, liken to, link, link with,
   maintain connection, make advances, make contact with, make known,
   make overtures, make up to, match, measure against, metaphorize,
   mythicize, mythify, mythologize, narrate, novelize, nuncupate,
   oppose, parallel, parallelize, pertain, pertain to, place against,
   present, proclaim, qualify, question, quote, raise, reach, recap,
   recapitulate, recite, reckon up, recount, refer, refer to, regard,
   rehearse, relate to, relativize, relevant, reply to, report,
   respect, respond to, retell, reveal, romance, rumor,
   run a comparison, score up, serve, set forth, set in contrast,
   set in opposition, set off against, set over against, similize,
   state, storify, suit, sum, sum up, summarize, summate, sympathize,
   tally up, tell, tell a story, tie, tie in with, tot up, total,
   total up, tote up, touch, touch upon, treat of, understand,
   unfold a tale, unite, view together, wed, weigh, weigh against,
   write up, yoke