The Collaborative International Dictionary of English v.0.48:

May \May\ (m[=a]), v. [imp. Might (m[imac]t)] [AS. pres. maeg
   I am able, pret. meahte, mihte; akin to D. mogen, G.
   m["o]gen, OHG. mugan, magan, Icel. mega, Goth. magan, Russ.
   moche. [root]103. Cf. Dismay, Main strength, Might. The
   old imp. mought is obsolete, except as a provincial word.]
   An auxiliary verb qualifying the meaning of another verb, by
   expressing:
   (a) Ability, competency, or possibility; -- now oftener
       expressed by can.
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             How may a man, said he, with idle speech,
             Be won to spoil the castle of his health!
                                                  --Spenser.
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             For what he [the king] may do is of two kinds; what
             he may do as just, and what he may do as possible.
                                                  --Bacon.
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             For of all sad words of tongue or pen
             The saddest are these: "It might have been."
                                                  --Whittier.
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   (b) Liberty; permission; allowance.
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             Thou mayst be no longer steward.     --Luke xvi. 2.
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   (c) Contingency or liability; possibility or probability.
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             Though what he learns he speaks, and may advance
             Some general maxims, or be right by chance. --Pope.
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   (d) Modesty, courtesy, or concession, or a desire to soften a
       question or remark.
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             How old may Phillis be, you ask.     --Prior.
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   (e) Desire or wish, as in prayer, imprecation, benediction,
       and the like. "May you live happily." --Dryden.
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   May be, & It may be, are used as equivalent to
      possibly, perhaps, maybe, by chance,
      peradventure. See 1st Maybe.
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The Collaborative International Dictionary of English v.0.48:

May \May\, n. [Cf. Icel. maer, Goth. mawi; akin to E. maiden.
   [root]103.]
   A maiden. [Obs.] --Chaucer.
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The Collaborative International Dictionary of English v.0.48:

May \May\, n. [F. Mai, L. Maius; so named in honor of the
   goddess Maia (Gr. Mai^a), daughter of Atlas and mother of
   Mercury by Jupiter.]
   1. The fifth month of the year, containing thirty-one days.
      --Chaucer.
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   2. The early part or springtime of life.
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            His May of youth, and bloom of lustihood. --Shak.
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   3. (Bot.) The flowers of the hawthorn; -- so called from
      their time of blossoming; also, the hawthorn.
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            The palm and may make country houses gay. --Nash.
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            Plumes that mocked the may.           --Tennyson.
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   4. The merrymaking of May Day. --Tennyson.
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   Italian may (Bot.), a shrubby species of Spiraea
      (Spiraea hypericifolia) with many clusters of small
      white flowers along the slender branches.

   May apple (Bot.), the fruit of an American plant
      (Podophyllum peltatum). Also, the plant itself
      (popularly called mandrake), which has two lobed leaves,
      and bears a single egg-shaped fruit at the forking. The
      root and leaves, used in medicine, are powerfully drastic.


   May beetle, May bug (Zool.), any one of numerous species
      of large lamellicorn beetles that appear in the winged
      state in May. They belong to Melolontha, and allied
      genera. Called also June beetle.

   May Day, the first day of May; -- celebrated in the rustic
      parts of England by the crowning of a May queen with a
      garland, and by dancing about a May pole.

   May dew, the morning dew of the first day of May, to which
      magical properties were attributed.

   May flower (Bot.), a plant that flowers in May; also, its
      blossom. See Mayflower, in the vocabulary.

   May fly (Zool.), any species of Ephemera, and allied
      genera; -- so called because the mature flies of many
      species appear in May. See Ephemeral fly, under
      Ephemeral.

   May game, any May-day sport.

   May lady, the queen or lady of May, in old May games.

   May lily (Bot.), the lily of the valley (Convallaria
      majalis).

   May pole. See Maypole in the Vocabulary.

   May queen, a girl or young woman crowned queen in the
      sports of May Day.

   May thorn, the hawthorn.
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WordNet (r) 3.0 (2006):

May
    n 1: the month following April and preceding June
    2: thorny Eurasian shrub of small tree having dense clusters of
       white to scarlet flowers followed by deep red berries;
       established as an escape in eastern North America [syn:
       whitethorn, English hawthorn, may, Crataegus
       laevigata, Crataegus oxycantha]

U.S. Gazetteer Places (2000):

May, OK -- U.S. town in Oklahoma
   Population (2000):    33
   Housing Units (2000): 27
   Land area (2000):     0.179778 sq. miles (0.465622 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.179778 sq. miles (0.465622 sq. km)
   FIPS code:            47000
   Located within:       Oklahoma (OK), FIPS 40
   Location:             36.616536 N, 99.749363 W
   ZIP Codes (1990):     73851
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    May, OK
    May