What are switchback words?

Switchback is a valid word in this word list ... The word "switchback" uses 10 letters: A B C C H I K S T W. No direct anagrams for switchback found in this word list. Words formed by adding one letter before or after switchback (in bold), or to abcchikstw in any order: s - switchb

Switchbacks": words are words which turn into other words if you change one letter (to any other letter) and then reverse the order of the letters. For instance:

elf fly

bird drab

deal land

door road

flaw waif (or wolf)

liar rain