Meaning of the word "a frog in the well knows nothing of the sea" in English

What does "a frog in the well knows nothing of the sea" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

a frog in the well knows nothing of the sea

US /ə frɔɡ ɪn ðə wɛl noʊz ˈnʌθɪŋ əv ðə siː/
UK /ə frɒɡ ɪn ðə wɛl nəʊz ˈnʌθɪŋ əv ðə siː/
"a frog in the well knows nothing of the sea" picture

Idiom

a person who is ignorant of the wide world due to their narrow experience or limited perspective

Example:
He thinks his small town is the best place on Earth, but a frog in the well knows nothing of the sea.
Traveling opened her eyes; she realized she had been a frog in the well who knew nothing of the sea.