Cubby is speaking to us! He has been saying "ahdun" when he is finished eating, getting a change, taking a bath, or just ready to move on to something else. He says "Dadadadada" to Adam and when Adam is around and yesterday started saying "Mum Ma". Today, the babe is really trying out the effect that "Mum Ma" has on me.
Marshall has made dadada and mamama sounds for a while now, but the words seem discriminate, now. And isn't that what speech really is? Sounds made at relevant times that resonate with the listener? Wait. If that is the definition, then I know many people who do not speak, they just babble.