Meaning of the word "know no bounds" in English

What does "know no bounds" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

know no bounds

US /noʊ noʊ baʊndz/
UK /nəʊ nəʊ baʊndz/

Idiom

to be limitless or without restriction

Example:
Her ambition seems to know no bounds.
The children's energy knew no bounds during the summer holidays.