Meaning of the word "on second thought" in English

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

on second thought

US /ɑːn ˈsek.ənd θɑːt/
UK /ɒn ˈsek.ənd θɔːt/
"on second thought" picture

Phrase

used to say that you have changed your mind or that you have a new idea that is better than your previous one

Example:
I'll have the chicken, no, on second thought, I'll have the fish.
Let's go to the park. Actually, on second thought, it might rain.