A palindrome is a word, phrase or sentence that reads the same backwards as forwards. For example, the word level is a palindrome. The shortest palindromic words in English are nun, ewe and pip, among others. The longest is redivider. Other palindromes are:
God! A dog!
Dennis and Edna sinned.
Dennis, Nell, Edna, Leon, Noel and Ellen sinned.
Sad? I'm Midas.
Step on no pets.
Live not on evil.
Do geese see God?
Madam, I'm Adam.
Never odd or even.
Pull up if I pull up.
No, it is opposition.
Too bad, I hid a boot.
Rats live on no evil star.
Was it Elliot's toilet I saw?
Able was I ere I saw Elba. (said by Napoleon)
Was it a car or a cat I saw?
May a moody baby doom a yam.
A man, a plan, a canal - Panama.
Some men interpret nine memos.
Go hang a salami, I'm a lasagna hog!
A Toyota! Race fast. Safe car: a Toyota.
Marge lets Norah see Sharon's telegram.
Doc, note. I dissent. A fast never prevents a fatness. I diet on cod.
(Extracted from the Guinness Book of Words)
Of course, the more letters you use, the more difficult they are to form. Can you think of any other?
We thank Laura Iñón (from Buenos Aires, Argentina) and Juan Fernando Vergara (from Medellín, Colombia) for their suggestions.