2

I've found "enterprise", which is 10 letters long. Does anyone know of any longer words that start and end with the same letter?

That letter doesn't have to be 'e', by the way. It just means that the first and last letter of the word have to be identical.

7
  • 20
    "Smiles" has a mile between the S's. (I couldn't resist.)
    – oosterwal
    Feb 18, 2011 at 22:16
  • 3
    This is the kind of thing you should ask a computer, e.g. with a shell script you could use egrep '^([[:lower:]])[[:lower:]]*\1$' /usr/share/dict/british-english-insane |awk '{ print length(), $0 }' |sort -n to filter and order a wordlist. Mar 15, 2013 at 7:30
  • 1
    EXTINCTIONSPECTROPHOTOPOLERISCOPEOCCULOGRAVOGYROKYNETOMETRE
    – Hot Licks
    Nov 24, 2018 at 21:07
  • I’m voting to close this question because the question is a very old joke usually told by (British?) schoolchildren. The answer/punchline is "Nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn...nnnn" and means that you are constipated."
    – Greybeard
    Jun 15, 2022 at 11:29
  • I’m voting to close this question because it belongs on Puzzling.SE, under trivia. Jun 15, 2022 at 13:59

6 Answers 6

17
  • achondroplasia - 14
  • breadcrumb - 10
  • cineangiocardiographic - 22
  • deinstitutionalized - 19
  • ethylenediaminetetraacetate - 27
  • flameproof - 10
  • governmentalizing - 17
  • handsbreadth - 12
  • interstimuli - 12
  • (There is no word beginning and ending with J)
  • kinnikinnick - 12
  • lepidopterological - 18
  • mesembryanthemum - 16
  • nondiscrimination - 17
  • obbligato - 9
  • postmastership - 14
  • qepiq*, qayaq* - 5
  • remanufacturer - 14
  • straightforwardnesses - 21
  • transformationalist - 19
  • unau - 4
  • vav - 3
  • wheelbarrow - 11
  • xerox - 5
  • youthfully - 10
  • zuz - 3 (found on Dictionary.Reference.com and TheFreeDictionary.com, but not in the Oxford dictionary)

Many of these words may not feature in the English dictionary. Some are medical or technical words.

10
  • 2
    straightforwardnesses? really??? could you use that in a sentence?
    – Adam
    Feb 18, 2011 at 16:02
  • :) I was wondering the same. However, the question was the longest words and I found these.
    – Sterex
    Feb 18, 2011 at 16:32
  • I mean, it seems syntactically correct... I just can't imagine any context where it would make any sense at all.
    – Adam
    Feb 18, 2011 at 18:17
  • 2
    @advs89: The thing I find most appealing about your comment is the straightforwardness with which you express your disbelief. Feb 18, 2011 at 20:54
  • 10
    I can appreciate both advs89's and dmckee's straightforwardnesses.
    – mgkrebbs
    Feb 19, 2011 at 7:00
9

Supercalifragilisticexpialidocious comes to mind.

Although some might claim the word is a bit artificial. :)

5

What's your definition of "word"? Names of chemical compounds can be of any arbitrary length (and various chemical prefixes both start and end with "e", for example)...

3
  • 1
    Shouldn't this be a comment?
    – Adam
    Feb 20, 2011 at 4:09
  • granted, I guess it doesn't really matter on a CW...
    – Adam
    Feb 20, 2011 at 4:10
  • 3
    @advs89 -- it's kind of the answer, in fact: under some definitions of "word", a word can be of theoretically infinite length. Feb 20, 2011 at 4:31
1

Naturalisation has 14 letters.

1

straightforwardness: 19 letters
Andrianampoinimerina: 20 letters (if we're counting proper nouns)

1

Here's the output of a quick-and-dirty script that I wrote (in descending order):

  • supercalifragilisticexpialidocious - 34
  • ethylenediaminetetraacetate - 27
  • transubstantiationalist - 23
  • cineangiocardiographic - 22
  • labioglossopharyngeal - 21
  • abetalipoproteinemia - 20
  • nonindustrialization - 20
  • dynamometamorphosed - 19
  • plenipotentiaryship - 19
  • governmentalising - 17
  • metapostscutellum - 17
  • rhomborectangular - 17
  • hygrothermograph - 16
  • improvvisatori - 14
  • overlubricatio - 14
  • frictionproof - 13
  • killickinnick - 13
  • windlestraw - 11
  • xylanthrax - 10
  • bumblebomb - 10
  • uturuncu - 8
  • qepiq - 5
  • zizz - 4
  • vav - 3

Here's the original output (in alphabetical order):

  • abetalipoproteinemia - 20
  • bumblebomb - 10
  • cineangiocardiographic - 22
  • dynamometamorphosed - 19
  • ethylenediaminetetraacetate - 27
  • frictionproof - 13
  • governmentalising - 17
  • hygrothermograph - 16
  • improvvisatori - 14
  • killickinnick - 13
  • labioglossopharyngeal - 21
  • metapostscutellum - 17
  • nonindustrialization - 20
  • overlubricatio - 14
  • plenipotentiaryship - 19
  • qepiq - 5
  • rhomborectangular - 17
  • supercalifragilisticexpialidocious - 34
  • transubstantiationalist - 23
  • uturuncu - 8
  • vav - 3
  • windlestraw - 11
  • xylanthrax - 10
  • youthfullity - 12
  • zizz - 4

I'm such an industrious citizen, editing the good ones into the main answer.

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