A palindrome is.

The correct option is: A word or sentence which reads the same both ways

Step-by-step Explanation:

A palindrome is a word, number, phrase, or other sequence of characters that reads the same backward as forward, ignoring spaces, punctuation, and capitalization.

Common examples of word palindromes include "radar", "level", "rotor", and "kayak". In these words, the sequence of letters remains identical whether we read from left to right or from right to left.

Sentences can also be palindromic when spaces and punctuation are ignored. For example, the phrase "Was it a car or a cat I saw?" reads exactly the same in reverse: "w-a-s-i-t-a-c-a-r-o-r-a-c-a-t-i-s-a-w".

Therefore, the definition that accurately describes a palindrome is "A word or sentence which reads the same both ways".