The only common English words that read the same backwards and upside down are the interjection OHO, the abbreviation SOS, the diminutive SIS and the word NOON. (Only OHO also appears the same in a mirror.)
They are palindromes (read the same forward and backward) and are made from the letters H, I, N, O, S, and Z which appear the same when inverted.
The word "MOM" does not qualify because upside down it reads "WOW". The proper name "SOHOS" would also be a palindromic and inverted version.
anna
If you spell NOON in capital it is spelt the same upside down and backwards.
If you mean, it is spelled the same forward and backwards, that probably refers to "noon".
Level
Glenelg, a city in Australia
you hop on your right foot jumping forward then on your left foot jumping backwards.
Words or phrases that are the same forward or backward are called palindromes.
tattarrattat
you can only spell 2 names. The names are Hannah and Anna. From Niall lover
when you spell ''Boston'' backwards, you get "notsob''
sdrawkcab
This is how you spell supercalifragilisicexpialidocious backwards the RIGHT way: supercalifragilisicexpialidocious backwards the RIGHT way: