Well, gee, for a named array @george you type $george[1], you call this array george,
for an anonymous array you type $height{george}, you call it $height{george},
its pronounced height-of-george
you can tack-on array or arrayref; the "ref" part of arrayref is implied by height-of-, implied by $height{}
sure its an arrayref, the keyword is array, the only name it has is height-of-george, so that is what you call it
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