The Collaborative International Dictionary of English v.0.48:

She \She\, pron. [sing. nom. She; poss. Her. or Hers; obj.
   Her; pl. nom. They; poss. Theiror Theirs; obj.
   Them.] [OE. she, sche, scheo, scho, AS. se['o], fem. of the
   definite article, originally a demonstrative pronoun; cf. OS.
   siu, D. zij, G. sie, OHG. siu, s[imac], si, Icel. s[=u],
   sj[=a], Goth. si she, s[=o], fem. article, Russ. siia, fem.,
   this, Gr. ?, fem. article, Skr. s[=a], sy[=a]. The possessive
   her or hers, and the objective her, are from a different
   root. See Her.]
   1. This or that female; the woman understood or referred to;
      the animal of the female sex, or object personified as
      feminine, which was spoken of.
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            She loved her children best in every wise.
                                                  --Chaucer.
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            Then Sarah denied, . . . for she was afraid. --Gen.
                                                  xviii. 15.
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   2. A woman; a female; -- used substantively. [R.]
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            Lady, you are the cruelest she alive. --Shak.
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   Note: She is used in composition with nouns of common gender,
         for female, to denote an animal of the female sex; as,
         a she-bear; a she-cat.
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The Collaborative International Dictionary of English v.0.48:

They \They\ ([th][=a]), pron. pl.; poss. Theirs; obj. Them.
   [Icel. [thorn]eir they, properly nom. pl. masc. of s[=a],
   s[=u], [thorn]at, a demonstrative pronoun, akin to the
   English definite article, AS. s[=e], se['o], [eth]aet, nom.
   pl. [eth][=a]. See That.]
   The plural of he, she, or it. They is never used adjectively,
   but always as a pronoun proper, and sometimes refers to
   persons without an antecedent expressed.
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         Jolif and glad they went unto here [their] rest
         And casten hem [them] full early for to sail.
                                                  --Chaucer.
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         They of Italy salute you.                --Heb. xiii.
                                                  24.
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         Blessed are they which do hunger and thirst after
         righteousness.                           --Matt. v. 6.
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   Note: They is used indefinitely, as our ancestors used man,
         and as the French use on; as, they say (French on dit),
         that is, it is said by persons not specified.
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The Collaborative International Dictionary of English v.0.48:

He \He\ (h[=e]), pron. [nom. He; poss. His (h[i^]z); obj.
   Him (h[i^]m); pl. nom. They ([th][=a]); poss. Their or
   Theirs ([th][^a]rz or [th][=a]rz); obj. Them
   ([th][e^]m).] [AS. h[=e], masc., he['o], fem., hit, neut.;
   pl. h[imac], or hie, hig; akin to OFries. hi, D. hij, OS. he,
   hi, G. heute to-day, Goth. himma, dat. masc., this, hina,
   accus. masc., and hita, accus. neut., and prob. to L. his
   this. [root]183. Cf. It.]
   1. The man or male being (or object personified to which the
      masculine gender is assigned), previously designated; a
      pronoun of the masculine gender, usually referring to a
      specified subject already indicated.
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            Thy desire shall be to thy husband, and he shall
            rule over thee.                       --Gen. iii.
                                                  16.
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            Thou shalt fear the Lord thy God; him shalt thou
            serve.                                --Deut. x. 20.
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   2. Any one; the man or person; -- used indefinitely, and
      usually followed by a relative pronoun.
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            He that walketh with wise men shall be wise. --Prov.
                                                  xiii. 20.
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   3. Man; a male; any male person; -- in this sense used
      substantively. --Chaucer.
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            I stand to answer thee,
            Or any he, the proudest of thy sort.  --Shak.
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   Note: When a collective noun or a class is referred to, he is
         of common gender. In early English, he referred to a
         feminine or neuter noun, or to one in the plural, as
         well as to noun in the masculine singular. In
         composition, he denotes a male animal; as, a he-goat.
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Moby Thesaurus II by Grady Ward, 1.0:

55 Moby Thesaurus words for "they":
   I, I myself, alter, alter ego, alterum, better self, bureaucracy,
   directorate, ego, ethical self, he, her, herself, hierarchy,
   higher echelons, higher-ups, him, himself, inner man, inner self,
   it, management, me, ministry, my humble self, myself, number one,
   officialdom, oneself, other self, ourselves, prelacy, ruling class,
   ruling classes, self, she, subconscious self, subliminal self,
   superego, the Establishment, the administration, the authorities,
   the ingroup, the interests, the people upstairs, the power elite,
   the power structure, the top, them, themselves, top brass, you,
   yours truly, yourself, yourselves