What do you call a formal speech?

There are many ways to call a formal speech, depending on the context and the specific type of speech. Here are some common terms:

General terms:

* Speech

* Address

* Lecture

* Presentation

* Discourse

More specific terms:

* Keynote address: A speech given at the beginning of a conference or event.

* Inaugural address: A speech given by a newly elected official.

* Commencement address: A speech given at a graduation ceremony.

* Eulogy: A speech given at a funeral.

* Toast: A brief speech given to celebrate a person or occasion.

* Acceptance speech: A speech given after receiving an award.

Informal terms:

* Talk

* Presentation

* Keynote

Ultimately, the best term to use will depend on the specific context.