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Interjection: hey  hey
  1. Used as a greeting
    - aloha [US], g'day [Austral], greetings, hi, hello, hiya, hallo, howdy, howzit [S.Africa], gidday [NZ], yo, wotcha [Brit], wotcher [Brit]
  2. Used to get someone's attention
    - oy, oi, excuse me

Sounds like:

Encyclopedia: Hey, Mikey!