Since the bigram far outweighed the monogram, there are probly trigrams (eg, N/R/S or R/S/T) with even more transposals
My article 'Transposing Rates' in the November 1987 Word Ways has examples for 63 of the 120 possible transposals
of the letters AERST.
the 2 pairs share a like word; the other words are transposals
Using "anagrams" in the narrow sense of meaningful or COGNATE TRANSPOSALS, what are the longest single-word examples?
The first issue of Word Ways (back in February 1968) carried an item, An Elemental Problem, which quizzed readers with transposals
of the names of 20 elements.
Of course the well-known palindromes, charades, Tom Swifties, transposals
, lipograms (as you might not know, apart from the English translation A Void--and a Spanish, an Italian, a German, a Japanese, a Turkish and other translations [
In 'A Challenge' (Nov 1975) Dmitri Borgmann lists transdeletions such as MONDAY-NOMAD and NOVEMBER-OVERMEN (supermen), and in August 2009 Dave Morice's anagrammatically titled 'Anagram Calendar--Arranged Almanac' includes some single-word transposals
, eg MONDAY-DYNAMO and MARCH-CHARM, as well as multi-word ones like TUESDAY-SEA DUTY and DECEMBER-BED CREME.