what word is the same forward, backward, and upside down
An ambigram (from Latin: ambi both + gram = letter) is a word or words that can be read in more than one direction, where the word reads the same when upside down or turn over to form an entirely new word.
A palindrome is a word, phrase, number, or other sequence of characters which reads the same backward or forward. Allowances may be made for adjustments to capital letters, punctuation, and word dividers.