Oo
Uses phonetical concepts and photographs to teach children reading skills, focusing on the letter o.

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1. \Oo\, a.
   One. [Obs.] --Chaucer.
   

2. \O"["o]\, n. [Hawaiian.] (Zo["o]l.)
   A beautiful bird ({Moho nobilis}) of the Hawaiian Islands. It
   yields the brilliant yellow feathers formerly used in making
   the royal robes. Called also {yellow-tufted honeysucker}.
   

object-oriented