Other forms: declamations
A declamation is a long, impassioned speech. Your heartfelt declamation to the school board about the quality of food in your school cafeteria may inspire the addition of a salad bar.
Like a tirade or a rant, a declamation has a lot of strong feelings behind it. There's more formality to a declamation, though — imagine a heartfelt and fiery response on a debate stage. The original 14th century definition was "a composition written to be declaimed," or delivered with passion and rhetoric.