The Collaborative International Dictionary of English v.0.48:

Related \Re*lat"ed\ (-l?t"?d), p. p. & a.
   1. Allied by kindred; connected by blood or alliance,
      particularly by consanguinity; as, persons related in the
      first or second degree.
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   2. Standing in relation or connection; as, the electric and
      magnetic forcec are closely related.
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   3. Narrated; told.
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   4. (Mus.) Same as Relative, 4.
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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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WordNet (r) 3.0 (2006):

related
    adj 1: being connected either logically or causally or by shared
           characteristics ; "painting and the related arts";
           "school-related activities"; "related to micelle
           formation is the...ability of detergent actives to
           congregate at oil-water interfaces" [syn: related,
           related to] [ant: unrelated]
    2: connected by kinship, common origin, or marriage [ant:
       unrelated]