A conversation between two or more characters is called dialogue. One character speaking can be a monologue, a soliloquy, or an aside, depending on how it is delivered.
That is called oral tradition.
Renaissance
Billy the Kid's last words were simply "you got me".
Dissidents
The capital of Portugal is Lisbon, and the language spoken there is Portuguese.
It is. The words spoken by actors in a drama
Contraction.
Mime
That is called aphasia.
Mime
Words that sound the same backwards as spoken forwards are called palindromes, such as "radar" or "level."
They are called quotation marks and are "......"
A play without words is called a ballet, or pantomime. A person who acts without words, is called a mime.
It is the play's script.
In a play, words in italics typically denote stage directions for actors or notes for the production team. They are used to indicate actions, movements, or instructions that are not spoken by the characters but are essential for the performance of the play.
I believe you are referring to an opera. Words are used, however only through singing them.
A pun.