How Do You Get the Name For A Specific Value In A Powershell Hash Table?

Question:

If I have a hash table like..

$theHash = @{"dog"="mean"; "cat"="nice";"bird"="annoying"}

1 2	$theHash = @{"dog"="mean"; "cat"="nice";"bird"="annoying"}

I can get the key for a value by doing:

$theHash."dog"

1 2	$theHash."dog"

How do I do the reverse? I want to put in something like, “mean” and get “dog” as the output? So if I only know “mean”, how do I get dog from that?

$theHash.keys | Where-Object {$theHash["$_"] -eq 'mean'}

1 2	$theHash.keys \| Where-Object {$theHash["$_"] -eq 'mean'}