Meaning of the word "tell tale" in English

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

tell tale

US /ˈtɛlˌteɪl/
UK /ˈtɛlˌteɪl/

Noun

a person who reveals secrets or informs on others

Example:
The teacher warned the students not to be tell-tales.
No one likes a tell-tale.

Adjective

revealing or indicating something, often something that is meant to be hidden

Example:
Her flushed cheeks were a tell-tale sign of her embarrassment.
The muddy footprints were a tell-tale clue that someone had been there.