Palindrome

A palindrome is a word, phrase, number, or sequence that reads the same backward as it does forward, regardless of spaces, punctuation, or capitalization. For instance, the word "level," the number "121," and the phrase "A man, a plan, a canal, Panama!" are all palindromes. They exhibit symmetry and are often explored in language and mathematics for their unique properties. Palindromes can be fun to discover and create, as they reveal the playful and artistic aspects of language and numeration.