Racecar
Race-car.
A palindrome for the word "tier" is "reit," which is not a recognized English word. However, "tier" itself does not have a direct palindrome since a palindrome reads the same forwards and backwards. The closest approach to finding a palindrome would involve rearranging letters or using a different set of letters entirely.
palindrome
racecar
palindrome. A palindrome is the same forwards and backwards, like the date written 11/11/11.
A Palindrome
A palindrome for a two-wheeled carriage is "bike." This word reads the same forwards and backwards, fitting the definition of a palindrome while also representing a common type of two-wheeled vehicle.
"Radar" is a palindrome for a type of flower.
Minim is a palindrome for a type of music note
kayak
Racecar
race car
race car
A mum is a flower that is also a palindrome.
race car
race car
race car
Pop is a type of music.