A palindrome is a word, phrase, number that can be read or said the same way in both directions.
Here is the link to an AWESOME list of palindromes
Some examples:
Bob
Mom
Racecar
Longer examples:
Aha!
A Toyota.
A dog! A panic in a pagoda!
A crazy example:
Go hang a salami, doc. Note: I dissent, a fast never prevents a fatness. I diet on cod, I'm a lasagna hog.