Find a word that is spelled the same backwards, like
That's a one-word palindrome.
Palindromes can be made up of more than one word, too. Just take out all the spaces and punctuation, rearrange the letters to put them all backwards without losing any in the shuffle, and reinsert new punctuation as appropriate.
For example: M A D A M, I' M A D A M is a famous palindrome quote from the first man in the world.
Able was I, ere I saw Elba. --attributed to Napoleon Bonaparte
If you have any favorite palindromes, send them my way.