Of note are mirror ambigrams. Particularly vertical axis mirror ambigrams, in this instance. That is, words that could be read by reflecting the design. Basile Morin has a list of ambigrams – mirror and otherwise – that they’ve designed on their website here.
qoop and bood are also not a palindromes, but poop and boob are |Ö|
There should be a class of word that is symmetric given a certain font.
Of note are mirror ambigrams. Particularly vertical axis mirror ambigrams, in this instance. That is, words that could be read by reflecting the design. Basile Morin has a list of ambigrams – mirror and otherwise – that they’ve designed on their website here.
Neither are QOOP or BOOD