Waiting for Godot is just that; a play about waiting. The title reflects the lack of action, or as one critic says, the less than action that fills the time normally taken up by plot. "Tragicomedy" is an apt description of the play’s genre, since it combines the absurdly farcical with the tragically poignant melancholy of daily life. That "two acts" part of the title is significant, since duality is an important theme for the work. Of course, you’ll have to actually read the play to get to that part.