She Said What?

Last weekend while Mason was playing with Elina, with her back turned to the both of us she uttered one little word.  It was crystal clear which means it had to be just babble.  Right?  I mean what baby says her first word perfectly?  Since we had just spent the entire week talking about how to say Mama, I really don't see how Daddy could be her first word.  She hasn't said it since, so I'm not counting it.  She has to say it at least twice before I count it.  Unless of course she says Mama.