Variables declared with 'our' are lexically scoped:

Only their declaration is lexically scoped. The variable itself is a real global.

use strict;
use warnings;
{
    our $foo = "Hello, world!\n";
}
{
    print our $foo; # prints: Hello, world!
}
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Only "my" variables are real lexicals:

use strict;
use warnings;
{
    my $foo = "Hello, world!\n";
}
{
    print my $foo; # warns: Use of uninitialized value
}
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