Meaning of the word "be frank" in English

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

be frank

US /bi fræŋk/
UK /bi fræŋk/

Phrase

to speak in an open, honest, and direct way, even if it might be unpleasant or difficult

Example:
To be frank, I don't think your idea will work.
Let me be frank with you about the challenges ahead.