Meaning of the word "interior monologue" in English

What does "interior monologue" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

interior monologue

US /ɪnˈtɪriər ˈmɑnəlɔɡ/
UK /ɪnˈtɪəriə ˈmɒnəlɒɡ/

Noun

a literary device used in literature to express a character's thoughts, feelings, and reactions internally, often without the direct presence of a narrator

Example:
The novel uses interior monologue to reveal the protagonist's deepest fears.
James Joyce is famous for his extensive use of interior monologue in 'Ulysses'.