A heterogram (from hetero-, meaning 'different', + -gram, meaning 'written') is a word, phrase, or sentence in which no letter of the alphabet occurs more than once. The terms isogram and nonpattern word have also been used to mean the same thing. [1] [2] [3]
It is not clear who coined or popularized the term "heterogram". The concept appears in Dmitri Borgmann's 1965 book Language on Vacation: An Olio of Orthographical Oddities but he uses the term isogram. [4] In a 1985 article, Borgmann claims to have "launched" the term isogram then. [5] He also suggests an alternative term, asogram, to avoid confusion with lines of constant value such as contour lines, but uses isogram in the article itself.
Isogram has also been used to mean a string where each letter present is used the same number of times. [6] [2] [7] Multiple terms have been used to describe words where each letter used appears a certain number of times. For example, a word where every featured letter appears twice, like "Shanghaiings", might be called a pair isogram, [8] a second-order isogram, [2] or a 2-isogram. [3]
A perfect pangram is an example of a heterogram, with the added restriction that it uses all the letters of the alphabet.
Heterograms can be useful as keys in ciphers, since heterogram sequences of the same length make for simple one-to-one mapping between the symbols. Ten-letter heterograms like PATHFINDER, DUMBWAITER, and BLACKHORSE are commonly used by salespeople of products where the retail price is typically negotiated, such as used cars, jewelry, or antiques.[ citation needed ]
For example, using the PATHFINDER cipher, P represents 1, A represents 2 and so on. The price tag for an item selling for $1200 may also bear the cryptic letters FRR, written on the back or bottom of the tag. A salesman familiar with the PATHFINDER cipher will know that the original cost of the item was $500, so that if the price is negotiated he will not accidentally eliminate all of the 140% margin in the $1200 price shown to prospective buyers.[ citation needed ]
A twelve-letter cipher could be used to indicate months of the year.
In the book Language on Vacation: An Olio of Orthographical Oddities , Dmitri Borgmann tries to find the longest such word. The longest one he found was "dermatoglyphics" at 15 letters. He coins several longer hypothetical words, such as "thumbscrew-japingly" (18 letters, defined as "as if mocking a thumbscrew") and, with the "uttermost limit in the way of verbal creativeness", "pubvexingfjord-schmaltzy" (23 letters, defined as "as if in the manner of the extreme sentimentalism generated in some individuals by the sight of a majestic fjord, which sentimentalism is annoying to the clientele of an English inn"). [4]
The word "subdermatoglyphic" was constructed by Edward R. Wolpow. [9] Later, in the book Making the Alphabet Dance, [10] Ross Eckler reports the word "subdermatoglyphic" (17 letters) can be found in an article by Lowell Goldsmith called Chaos: To See a World in a Grain of Sand and a Heaven in a Wild Flower. [11] He also found the name "Melvin Schwarzkopf" (17 letters), a man living in Alton, Illinois, and proposed the name "Emily Jung Schwartzkopf" (21 letters). In an elaborate story, Eckler talked about a group of scientists who name the unavoidable urge to speak in pangrams the "Hjelmqvist-Gryb-Zock-Pfund-Wax syndrome".
The longest German heterogram is "Heizölrückstoßabdämpfung" (heating oil recoil dampening) which uses 24 of the 30 letters in the German alphabet, as ä, ö, ü, and ß are considered distinct letters from a, o, u, and s in German.[ citation needed ] It is closely followed by "Boxkampfjuryschützlinge" (boxing-match jury protégés) and "Zwölftonmusikbücherjagd" (twelve-tone music book chase) with 23 letters.[ citation needed ]
There are hundreds of eleven-letter isograms, over one thousand ten-letter isograms and thousands of such nine-letter words. [12]
The identity of the longest word in English depends on the definition of a word and of length.
F, or f, is the sixth letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ef, and the plural is efs.
Transliteration is a type of conversion of a text from one script to another that involves swapping letters in predictable ways, such as Greek ⟨α⟩ → ⟨a⟩, Cyrillic ⟨д⟩ → ⟨d⟩, Greek ⟨χ⟩ → the digraph ⟨ch⟩, Armenian ⟨ն⟩ → ⟨n⟩ or Latin ⟨æ⟩ → ⟨ae⟩.
A pangram or holoalphabetic sentence is a sentence using every letter of a given alphabet at least once. Pangrams have been used to display typefaces, test equipment, and develop skills in handwriting, calligraphy, and typing.
Piphilology comprises the creation and use of mnemonic techniques to remember many digits of the mathematical constant π. The word is a play on the word "pi" itself and of the linguistic field of philology.
"The Alphabet Cipher" was a brief study published by Lewis Carroll in 1868, describing how to use the alphabet to send encrypted codes. It was one of four ciphers he invented between 1858 and 1868, and one of two polyalphabetic ciphers he devised during that period and used to write letters to his friends.
Gaj's Latin alphabet, also known as abeceda or gajica, is the form of the Latin script used for writing Serbo-Croatian and all of its standard varieties: Bosnian, Croatian, Montenegrin, and Serbian.
A word square is a type of acrostic. It consists of a set of words written out in a square grid, such that the same words can be read both horizontally and vertically. The number of words, which is equal to the number of letters in each word, is known as the "order" of the square. For example, this is an order 5 square:
A cipher disk is an enciphering and deciphering tool developed in 1470 by the Italian architect and author Leon Battista Alberti. He constructed a device, consisting of two concentric circular plates mounted one on top of the other. The larger plate is called the "stationary" and the smaller one the "moveable" since the smaller one could move on top of the "stationary".
Hubert Blaine Wolfeschlegelsteinhausenbergerdorff Sr. was a German-born American typesetter who held the record for the longest personal name ever used. Hubert's name is made up from 27 names. Each of his 26 given names starts with a different letter of the English alphabet in alphabetical order; these are followed by a long single-word last name. The exact length and spelling of his name has been a subject of considerable confusion due in part to its various renderings over the years, many of which have typographical errors. One of the longest and most reliable published versions, with a 666-letter surname, is as follows:
Adolph Blaine Charles David Earl Frederick Gerald Hubert Irvin John Kenneth Lloyd Martin Nero Oliver Paul Quincy Randolph Sherman Thomas Uncas Victor William Xerxes Yancy Zeus Wolfeschlegelsteinhausenbergerdorffwelchevoralternwarengewissenhaftschaferswessenschafewarenwohlgepflegeundsorgfaltigkeitbeschutzenvorangreifendurchihrraubgierigfeindewelchevoralternzwolfhunderttausendjahresvorandieerscheinenvonderersteerdemenschderraumschiffgenachtmittungsteinundsiebeniridiumelektrischmotorsgebrauchlichtalsseinursprungvonkraftgestartseinlangefahrthinzwischensternartigraumaufdersuchennachbarschaftdersternwelchegehabtbewohnbarplanetenkreisedrehensichundwohinderneuerassevonverstandigmenschlichkeitkonntefortpflanzenundsicherfreuenanlebenslanglichfreudeundruhemitnichteinfurchtvorangreifenvorandererintelligentgeschopfsvonhinzwischensternartigraum Sr.
Dmitri Alfred Borgmann was a German-American author best known for his work in recreational linguistics.
Zzxjoanw is a fictitious entry in an encyclopedia which fooled logologists for many years. It referred to a purported Māori word meaning "drum", "fife", or "conclusion".
"Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo buffalo" is a grammatically correct sentence in English that is often presented as an example of how homonyms and homophones can be used to create complicated linguistic constructs through lexical ambiguity. It has been discussed in literature in various forms since 1967, when it appeared in Dmitri Borgmann's Beyond Language: Adventures in Word and Thought.
Logology is the field of recreational linguistics, an activity that encompasses a wide variety of word games and wordplay. The term is analogous to the term "recreational mathematics".
The Pashto alphabet is the right-to-left abjad-based alphabet developed from the Arabic script, used for the Pashto language in Pakistan and Afghanistan. It originated in the 16th century through the works of Pir Roshan.
Word Ways: The Journal of Recreational Linguistics is a quarterly magazine on recreational linguistics, logology and word play. It was established by Dmitri Borgmann in 1968 at the behest of Martin Gardner. Howard Bergerson took over as editor-in-chief for 1969, but stepped down when Greenwood Periodicals dropped the publication. A. Ross Eckler Jr., a statistician at Bell Labs, became editor until 2006, when he was succeeded by Jeremiah Farrell.
A panalphabetic window is a stretch of text that contains all the letters of the alphabet in order. It is a special type of pangram or pangrammatic window.
Palindromes and Anagrams is a 1973 non-fiction book on wordplay by Howard W. Bergerson.
Language on Vacation: An Olio of Orthographical Oddities is a 1965 book written by Dmitri Borgmann.
Beyond Language: Adventures in Word and Thought is a 1967 book written by Dmitri Borgmann.