That Platypus

What is that?

That - pron., a., conj., & adv.

1a : the person, thing, or idea indicated, mentioned, or understood from the situation <that is my platypus> b : the time, action, or event specified <after that I went to see some platypi> c : the kind or thing specified as follows <platypi know the purest water is that produced by distillation> d : one or a group of the indicated kind <that's a platypus quick and agile>