(1) Racecar
This is a seven letter long palindrome.
(2) Hannah
This name is palindromic, and interesting enough it contains within it another palindromic name: Anna Whether there are any other words that have another palindrome nested inside them, who knows!
(3) Deified
This is another longish palindrome. There are longer single words that are palindromic but they are quite obscure.
(4) Able was I ere I saw Elba
This is a famous sentence that is palindromic and said about Napoleon who was banished to Elba.
(5) A man, a plan, a canal, Panama
Another famous palindromic sentence.
(6) Level
One of the most commonly used palindromic words, level is of course the same both ways.
(7) civic
Another of the many palindromic words. There are probably sites that list every palindromic word for those that are particularly interested.
(8) radar
The word radar is palindromic, and so this word of course is relatively recent as it couldn't exist before radar was invented!
(9) rotor
This part of the motor is palindromic.