palindrome
Sign in to savethumb|upright=1.3|4th-century Greek Byzantine palindrome: ΝΙΨΟΝ ΑΝΟΜΗΜΑΤΑ ΜΗ ΜΟΝΑΝ ΟΨΙΝ (Wash Your Sins, Not Only Your Face) on a mosaic in the in Greece.
AI overview
A palindrome is a word, phrase, or text that reads the same forwards and backwards, like the ancient Greek inscription shown here that instructs "Wash Your Sins, Not Only Your Face." Palindromes have been created since at least the 4th century and demonstrate a fascinating interplay between language and symmetry, capturing the interest of writers and puzzle enthusiasts throughout history.
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Article
21 sectionsContents
- Etymology
- Historical development
- Types
- Characters, words, or lines
- Sentences and phrases
- Names
- Numbers
- Dates
- {{anchor|Phonetic}} In speech
- Longest palindromes
- Other occurrences
- Classical music
- Biological structures
- Computation theory
- Notable palindromists
- See also
- Related topics
- Related cases
- References
- Further reading
- External links
thumb|upright=1.3|4th-century Greek Byzantine palindrome: ΝΙΨΟΝ ΑΝΟΜΗΜΑΤΑ ΜΗ ΜΟΝΑΝ ΟΨΙΝ (Wash Your Sins, Not Only Your Face) on a mosaic in the in Greece.
A palindrome (/ˈpæl.ɪn.droʊm/) is a term given to describe a word, a number, a phrase, or other sequence of symbols that read the same backwards as they read forwards. Examples include the words madam or racecar, the date "22/02/2022", or the sentence "A man, a plan, a canal, Panama". The 19-letter Finnish word saippuakivikauppias (a soapstone vendor) is the longest single-word palindrome that is still in everyday use, while the 12-letter term tattarrattat (from James Joyce in Ulysses) is the longest in the English language.