Meaning of the word "talk is cheap" in English

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

talk is cheap

US /tɔːk ɪz tʃiːp/
UK /tɔːk ɪz tʃiːp/
"talk is cheap" picture

Idiom

it is easier to say you will do something than to actually do it

Example:
He keeps promising to help, but talk is cheap.
You say you'll finish the project by tomorrow? Talk is cheap.