declamation

/ˌdekləˈmeɪʃn ˌडे̮क्‌लˈमेश्‌न्‌/ noun

1 [U] the act of speaking to an audience about something in a formal way औपचारिक सम्बोधन, वक्‍तृता

2 [C] a speech or a piece of writing expressing strong feelings and opinions प्रबल भावनाओं और विचारों वाला जोशिला भाषण

Declamations against the government are common enough.