palindrome (PAL-in-droam) noun A word (such as "level"), a compound (such as "race car"), a sentence (see below), or a longer statement that communicates the same message when the letters of which it is composed are read in reverse order. Palindromes make you exult Ah ha! Oh, ho! Hey, yeh!, Yo boy!, Yay!, Wow!, Tut-Tut!, Har-har!Rah-rah!, Heh-heh!, and Hoorah! Har! Ooh! and Ahem! It's  time. Ha! The most famous palindrome is MADAM, IM ADAM.