![Find the number of 4 letter words that can be formed using the letters of the word PISTON in which atleast one letter is repeated. Find the number of 4 letter words that can be formed using the letters of the word PISTON in which atleast one letter is repeated.](https://d10lpgp6xz60nq.cloudfront.net/web-thumb/641009736_web.png)
Find the number of 4 letter words that can be formed using the letters of the word PISTON in which atleast one letter is repeated.
What do you call a word that no matter if you reverse it, it will stay the same word like for example, dad, mom? - Quora
![25 Palindrome Words (Spelled the Same Backwards & Forwards) - Parade: Entertainment, Recipes, Health, Life, Holidays 25 Palindrome Words (Spelled the Same Backwards & Forwards) - Parade: Entertainment, Recipes, Health, Life, Holidays](https://parade.com/.image/t_share/MTkwNTgxMDYxOTE3MDI2MTcy/palindrome-words-redder.jpg)