palindrome
/ˈpælɪndroʊm/
noun
- A word, phrase, or sequence that reads the same forwards and backwards, ignoring spaces, punctuation, and capitalization.
- "Racecar" is a well-known palindrome that reads the same both ways.
- The teacher challenged the class to find a palindrome longer than ten letters.
- She enjoyed creating palindromes like "A man, a plan, a canal, Panama."