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Re: what is the difference between O,TI and OTI?
by Greg Brush - Monday, 25 February 2008, 12:36 PM
  No, it's not a typo -- these are two different words. ότι (ΟΤΙ) is a conjunction and means "that"; ό,τι (Ο,ΤΙ) is a pronoun which means "whatever".

Several decades ago when Greek was still written in polytonic style, these two words were differentiated by a space: 'ότι vs. 'ό τι. Now in the monotonic era, they're differentiated solely by a comma: ότι vs. ό,τι.

Greg Brush