Can you return a variable without initializing it?

hi guys. i’m not sure if this goes here but can someone help or explain this problem for me? i have tried googling it but i am not having any luck. any help would be appreciated, thanks!

“declare a variable without initializing it and return it”

I have done both of these:

#1
var myVariable;

return myVariable;

or

#2
var myVariable;

console.log(myVariable)

I know how to declare a variable but not sure how to return it. I thought you could only return using a function.