I see lots of threads with children who have at least some speech at around this age (there's one here with whole lists of words, I notice). But none of them seem to relate to my son, who says nothing at all at the age of 21 months.
He is, however, responsive to communication, points at things and runs to get objects (eg shoes if I say we're going out, his cup if I ask him if he's thirsty, etc). He just doesn't actually say ANYTHING. Not one word.
Please tell me I'm not the only one!