Antiballō means to throw against, exchange, or bandy about. It describes a mutual exchange — such as exchanging words, hurling arguments back and forth, or the back-and-forth of conversation. Found once in the New Testament in Luke's account of the disciples on the road to Emmaus.
On the road to Emmaus, two disciples were exchanging words about the events of the crucifixion — confused, grief-stricken, their hopes shattered. Then Jesus drew near and walked with them. The risen Christ meets us precisely in our confused, questioning conversations about suffering and disappointment, transforming our exchanges of doubt into revelations of truth.