| Term | Definition |
| A "mistake". It is creating a mistake which causes ones own downfall, not because of a particular but because of a lack of knowledge | Hamartia |
| The learning that takes place after a mistake. You make the mistake because you lacked that knowledge but now you have gained the knowledge you previously did not have. (MacBeth not knowing that MacDuff was born of C-Section) | Anagnorsis |
| Build up of pity and suffering within the play so that it is lowers within the audience creating a sort of equilibrium or balance in life. | Katharsis |
| Someone moving from good to bad. In Greek plays the person of high status losing that status or other objects of equal importance. | Catastrophe |
| When a character makes an action, thinking that the effect will be one thing (because of limited knowledge) but it turns out to be the opposite of what was planned or intended | Peripeteia |