The Collaborative International Dictionary of English v.0.48:

Greet \Greet\ (gr[=e]t), v. i.
   To meet and give salutations.
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         There greet in silence, as the dead are wont, And sleep
         in peace.                                --Shak.
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The Collaborative International Dictionary of English v.0.48:

Greet \Greet\, n.
   Greeting. [Obs.] --F. Beaumont.
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The Collaborative International Dictionary of English v.0.48:

Greet \Greet\, a.
   Great. [Obs.] --Chaucer.
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The Collaborative International Dictionary of English v.0.48:

Greet \Greet\, v. i. [OE. greten, AS. gr[=ae]tan, gr[=e]tan;
   akin to Icel. gr[=a]ta, Sw. gr[*a]ta, Dan. gr[ae]de, Goth.
   gr[=e]ctan; cf. Skr. hr[=a]d to sound, roar. [root]50.]
   To weep; to cry; to lament. [Obs. or Scot.] [Written also
   greit.] --Spenser.
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The Collaborative International Dictionary of English v.0.48:

Greet \Greet\, n.
   Mourning. [Obs.] --Spenser.
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The Collaborative International Dictionary of English v.0.48:

Greet \Greet\, v. t. [imp. & p. p. Greeted; p. pr. & vb. n.
   Greeting.] [OE. greten, AS. gr[=e]tan to address, approach;
   akin to OS. gr[=o]tian, LG. gr["o]ten, D. groeten, OHG.
   gruozzen, G. gr["u]ssen. [root]50.]
   1. To address with salutations or expressions of kind wishes;
      to salute; to hail; to welcome; to accost with friendship;
      to pay respects or compliments to, either personally or
      through the intervention of another, or by writing or
      token.
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            My lord, the mayor of London comes to greet you.
                                                  --Shak.
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   2. To come upon, or meet, as with something that makes the
      heart glad.
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            In vain the spring my senses greets.  --Addison.
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   3. To accost; to address. --Pope.
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WordNet (r) 3.0 (2006):

greet
    v 1: express greetings upon meeting someone [syn: greet,
         recognize, recognise]
    2: send greetings to
    3: react to in a certain way; "The President was greeted with
       catcalls"
    4: be perceived by; "Loud music greeted him when he entered the
       apartment"