A palindrome is a word, phrase, or character sequence that reads identically forwards and backwards (such as "racecar", "rotator", or "deified").
The word "palindrome" was coined by English dramatist Henry Peacham in 1638, derived from Greek palindromos (palin "again" + dromos "running"). In English orthography, single-word palindromes range from 3-letter everyday staples (eye, mom, nun, pup, pop) to 7-to-9 letter symmetrical champions such as "rotator", "deified", "reviver", "repaper", and "redivider". Symmetrical words are prized in Scrabble and competitive anagram puzzles.
Authoritative record holders for single-word forward-and-backward letter symmetry
12-letter onomatopoeic knock in James Joyce’s Ulysses (1922, Oxford English Dictionary).
12-letter Native American preparation of dried leaves and tobacco sumac.
11-letter chemical past-tense verb: freed from tartrates or cream of tartar.
9-letter standard English noun: one who partitions or divides anew.
Test any English word to verify exact forward/backward letter symmetry:
Verified English words exemplifying palindromes (symmetrical words) with Scrabble scores
Linguistic definitions, etymological origins, and tournament usage
A palindrome is a word, phrase, or number that reads identically forwards and backwards, such as "racecar" or "level".