word, phrase, number, or other sequence of units that may be read the same way in either direction From Wikipedia, the free encyclopedia
A palindrome is a word, sentence, or number that reads the same from left to right as from right to left.[1][2] Punctuation does not matter, but letters and digits do. All alphabetic languages have palindromes. The first palindrome was the Latin Sator Square, which reads:
You can read it horizontally, backwards, even vertically!
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