Meaning of the word "a different kettle of fish" in English

What does "a different kettle of fish" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

a different kettle of fish

US /ə ˈdɪf.rənt ˈket̬.əl əv fɪʃ/
UK /ə ˈdɪf.rənt ˈket̬.əl əv fɪʃ/
"a different kettle of fish" picture

Idiom

1.

something that is completely different from something else previously mentioned

Example:
I thought I could handle the new project, but it turned out to be a different kettle of fish.
Dealing with clients is one thing, but managing a team is a different kettle of fish.
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