Editing Palindrome (section)

=== Characters, words, or lines ===
{{seealso|Reversible poem}}
The most familiar palindromes in English are character-unit palindromes, where the characters read the same backward as forward. Examples are ''civic'', ''radar'', ''level'', ''rotor'', ''kayak'', ''madam'', and ''refer''. The longest common ones are ''rotator, deified, racecar'', and ''reviver''; longer examples such as ''redivider'', ''kinnikinnik'', and ''tattarrattat'' are orders of magnitude rarer.<ref>{{Cite web |url=https://books.google.com/ngrams/graph?content=kinnikinnik%2Ctattarrattat%2Crotator%2Cdeified%2Crepaper%2Creviver%2Credivider&year_start=1800&year_end=2019&corpus=26&smoothing=3 |title=Google nGrams frequencies |access-date=29 December 2022 |archive-date=29 December 2022 |archive-url=https://web.archive.org/web/20221229212046/https://books.google.com/ngrams/graph?content=kinnikinnik,tattarrattat,rotator,deified,repaper,reviver,redivider&year_start=1800&year_end=2019&corpus=26&smoothing=3 |url-status=live }}</ref><!-- per {{WP:INDISCRIMINATE}}, please don't add further examples just because you can; these are EXAMPLES only -->

There are also word-unit palindromes in which the unit of reversal is the word ("Is it crazy how saying sentences backwards creates backwards sentences saying how crazy it is?"). Word-unit palindromes were made popular in the [[Logology (linguistics)|recreational linguistics]] community by [[J. A. Lindon]] in the 1960s. Occasional examples in English were created in the 19th century. Several in French and Latin date to the [[Middle Ages]].<ref>{{cite web
 |url          = http://www.kmjn.org/notes/word_unit_palindromes.html
 |title        = Word-unit palindromes
 |author       = Mark J. Nelson
 |date         = 7 February 2012
 |access-date  = 18 November 2012
 |archive-date = 12 February 2013
 |archive-url  = https://web.archive.org/web/20130212034438/http://www.kmjn.org/notes/word_unit_palindromes.html
 |url-status   = live
}}</ref>

There are also line-unit palindromes, most often [[Palindrome poem|poems]]. These possess an initial set of lines which, precisely halfway through, is repeated in reverse order, without alteration to word order within each line, and in a way that the second half continues the "story" related in the first half in a way that makes sense, this last being key.<ref>"Never Odd Or Even, and Other Tricks Words Can Do" by O.V. Michaelsen (Sterling Publishing Company: New York), 2005 p124-7</ref>

{| class="wikitable"
|+
Example
!Initial order
!Reversed order
|-
|{{color|crimson|We can save the world}}<br>I cannot believe that<br>{{color|navy|The world is doomed}}
|{{color|navy|The world is doomed}}<br>I cannot believe that<br>{{color|crimson|We can save the world}}
|}