Simple Definition:

A palindrome is a word, phrase, number, or sequence of characters that reads the same backward as it does forward. [A palindrome is a word that can be read the same way from left to right and right to left.]

For example:

• The word “level” is a palindrome because it reads the same backward.
• The phrase “A man, a plan, a canal, Panama” is a palindrome because it can be read the same way forward and backward.
• The number 12321 is a palindrome because it remains the same when read from left to right or right to left.

Very Simple Definition:

A palindrome is a word, phrase, or number that reads the same forward and backward.

For example:

• The word “level” is a palindrome.
• The phrase “racecar” is a palindrome.
• The number 127721 is a palindrome.