Meaning: In a nutshell

[K1ngk0ng]

Hi dear and respected teachers,

I've looked up that expression in the online cambridge dictionary as you can see it here nutshell and it says:

in a nutshell using as few words as possible:
Well, to put it in a nutshell, we're lost.

Could anyone help explain what "in a nutshell" expression means, please?

I'd be grateful.

KK

[K1ngk0ng]

Sorry, I've already found the answer to the question here Meaning of "in a nutshell"