Frequency of Spellings
  Based on G. Dewey's Grapheme-Phoneme Correspondence Studies
http://www.unifon.org/dewey.html [connect]

Word Frequency
 The Spellings of Sounds

   A quick review of Godfrey Dewey's (1971) Research1

To what extent is English spelling a guide to pronunciation?  Can someone who knows the alphabet figure out the pronunciation of an unfamiliar printed word in a book? If one knows how to pronounce a word, what are the chances it can be spelled correctly?  These are some of the questions that Godfrey Dewey attempted to investigate.

1. How many ways can a sound be spelled in TO?

2. How many ways can an English vowel be pronounced?

3. How Phonemic is English Spelling?

4. How Predictable is the Traditional Writing System?

5. The vocalization of English
 

In an ideal phonemic writing system, one that follows the alphabetic principle, a sound can be spelled one and only one way.

When words are spelled the way they sound, it is relatively easy to spell any word you can pronounce. In an alphabetic or highly phonemic writing system, such as Finnish, Italian,  Croatian, Turkish, Hungarian,  or Spanish the way a word is spelled is a guide to its pronunciations.
[The rating of the spelling systems used by various languages]

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English Spelling and the Traditional Writing System

The writing system needs only 40 graphemes for 40 sounds, 
the traditional writing system has 1,120 graphemes or ways to spell a sound [Nyikos 1988].

How many ways can one spell the /p/ sound in English? As the chart below shows, it can be spelled 5 different ways, however, we are likely to encounter only 2 of these spellings among the 100,000 most frequently used words in the English language. On the average the consonants can be spelled 9 different ways. Consonant sounds with 14 or more different spellings include sh, j, n, s, k, and t.

The average vowel can spelled a phenomenal 20.7 differentways, according to Dewey's research. Using a larager dictionary and a slightly different methodology, later researchers such as Nyikos [1988] have located 1,120 different graphemes for the 40 phonemes of English. That is an average of 28 spellings per sound.  The chart below illustrates 18 of the 28 ways that /u:/ can be spelled in TO (the traditional orthography). One phoneme has 28 grapheme correspondents. This suggests that vowels in TO (the traditional English writing system or orthography) are little more than place holders. In a fully phonemic notation, the same 41 sounds would be spelled 41 ways -- in other words, with one, and only one, spelling per sound.

Updated Version of this Analysis
In traditional English orthography (TO) the same sound is spelled an average of 14 different ways
 This particular vowel /u:/ can be spelled 29 different ways - 18 listed below:
  TO
Graph
TO
Traditional
WES
World Eng
Cut Spelling  NF
Follick
  TO
Graph
TO
Traditional
WES
World Eng
Cut
Spelling
NF
Follick
1. u..e rule rool rule ru:l 10. u ruby roobee ruby ru:bi,
2. ue flue floo flu flu: 11. ou..e troupe troop troup tru:p
3. ui fruit froot frut fru:t 12. ough through throo thru thru:
4. eu maneuver manoovr manuvr manu:vr 13. ooe wooed wood wooed wu:d
5. ou group groop grup gru:p 14. oo..e ooze ooz ooz u:z
6. ew grew groo grew gru: 15. heu rheumatism roomatism rumatism  ru:matism
7. o..e move moov move mu:v 16. ui..e bruise brooz brus bru:z
8. oe canoe cunoo canoe canu: 17. wo two too to* tu:
9. oo moon moon moon mu:n 18. o do doo do du:
 
The chart above illustrates 18 of the 29 different ways that the /u:/ sound is spelled in TO. Cut Spelling reducesthe number from 18+ to 9. [o, oo, u, ue, u-e, ew, oe, o-e, ou].   CS makes a few substitutions [y for igh] but not many. Phonemic systems such as WES, NS, and NF reduce the number of different ways to spell a sound to 1. See Dewey, 1971, for a complete list of the different possible TO spellings for every sound.  [another chart]

Veblen wrote that English spelling satisfies all the requirements of conspicuous waste. "It is archaic, cumbrous, and ineffective..failure to acquire it is easy of detection..." On having a spelling error pointed out, Andrew Jackson once remarked, "It is a poor mind that cannot think of more than one way to spell a word." Spelling is difficult, according to Harry Shaw (Harper: Spell It Right! p.4) because "The correct spelling of many words does not even approximate the sounds being represented." Laubach called English "The world's worst spelled language."

"Unless spelling undergoes reform, our spelling may proceed to the point where many words become ideographic as Chinese." [H. Shaw]. Webster thought it had already arrived at this point and that the alphabetic principle had been all but abandoned.

Webster quote:

How many ways can a vowel letter be pronounced? As the second chart shows, 7-9 different ways in TO. While this is true, usually the first three ways usually account for over 80% of the instances.
 
 
 

A Fonimic Aelfabet for English
The Saxon alfabet: 41 foniemz- 17 vaulz - 24 connsonants
A e,i
ago the
AA aar
caar
A. AE
aet catt
AI 'y
ais ice
A .U
aut out
B
bibb
Dh
the
Ch tsh
check
D
didd
UR ER
hurrder
E. EA
bread
EI ey
eys ace
F
fetch
G
gagg
H. *hw
hu rrdl
I.
it tippy
IE I .Y
yield si
J dzh
judj jvj
Qu
kick quit
L 'l
littl
M  'm
maund
N  'n
nvn
.NG
singl
O.
otter
O AO
dog
OA OW
owe
OY oi
oyster
P
pick
R .  'r
roar
S
sisster
Sh
shipp
T
tot tott
Th thh
thy  thhai
U. v
upp urr
.U. .W
hwk hook
U uu
guuru
V
vatt
W. hw
winner
X ks
tax tacks
Y. Yu
yess
Z
zipp
Zh
mezhr
  vowels-white,semivowels-gray, consonants-blue, digrafs-dk. blue
Irregular traditionally spelled words are italicized, eye-ai, out-aut, 
*vowels when not followedby a vowel - wwln =woolen  more
9Real world writing systems aren't perfect but few are as bad as English. Pronunciations change over time and the orthographies of other languages have adjusted their spellings to reflect today's pronunciations. English has never made such an adjustment.

In England, around 1400 AD, there was a pronunciation change so great that it is referred to as "the great vowel shift." All language populations experience this kind of change and the writing system must be changed accordingly if it is to continue tobe any guide to pronunciation. Many English words may be written the same as they were in the time of Chaucer (1350). Today's spelling tends to match an earlier pronunciation.

Unlike most other languages that have undergone several spelling reforms, English, a confused amalgam of 3 spelling systems (Anglo Saxon, Norman French, and Latin), has yet to have its first. Spellings that reflect the way a word was pronounced in the year,1300, are still with us.


41 English phonemes can be spelled 561 different ways
41 English Sound Categories
*Dewey used 41 phonemes.  Other opinions as to the  number of phonemes in English
Sound (phoneme)  | Total number of spellings - 561 | Frequent spellings - 361
The /p/ sound can be spelled 5 ways and 2 are fairly common
The /ae/ sound in *ax can be spelled 13 ways and 4 are fairly common
Consonants
 
Vowels
Traditional Spellings key word   Traditional Spelling key words

th 

dh, x 

sh 

zh 

ch 

ng 

h

14 

17 

4

17 

13 

20 

10 

12 

14 

11 

10 

3

11 

15 

10 

10 

6

3

pipe 

boot 

tip 

digits 

korner 

goad 

flag 

valley 

thin, thigh 

the, thy 

snake 

zig zag 

sharp 

azure 

chick 

jaw, ej 

mound 

nose 

ingot 

lever 

run 

wave 

yoke 

hurdle

  ae 

a: aa  q

ei  e: air

i: 

q

o: [aw]

^  u' 

ou  o' 

u. [oo] 

u: [oo] 

'a @


ai  'y 

au 

oi 

yu U 



17
vowels 

24 con- 
sonants 

.
41
.Total

13 

16 

19 

36 

33 

23 

11 

17 

13 

23 

12 

29 

43 


22 

18 


342 


219 



 

561

10 

19 

20 

20 

13 

10 

19 

11 

19 

23 


14 

10 


216 


145 



 

361

ax, act, am 

art, alms, ma 

el, elbow, etch 

avian, air, ape 

it, index

eel, eat, me, ink, very 

ox, pot, odd, 

awe, hawk, caught 

up, ton, a'go,a'cute

oat, poke (po'k), open 

put, hook, full 

ooze, hoop 

acute, ago, data, herder 


eye, ice, aisle 

owl, how, cow 

oil, boy, void 

yew, few, ewe, fuel 


20.7 spellings      5.26
        per sound

 9.1 spellings       3.54
       per sound 

.
13.7 spellings      8.8
        per sound

 
2nd column:  Dictionary frequency - different spellings found in a 70,000 word dictionary
3rd column: RF/SP = Relative Frequence: Number found in 100,000 running words.

Compare to the studies of Paul Hanna (1966),  (Nyikos, 1988),  (Carney, 1994) and others


How many ways can a vowel be pronounced in TO?  see chart

The traditional writing system spells 17 vocalic phonemes over 340 different ways but the 5 vowel letters are associated with only 41 different sounds.   The letter a, as shown below, can be pronounced 9 different ways. The chart shows the number of different ways that the other vowels can be pronounced. The number of frequent pronunciations is about one less than the number shown.

Tha [a] cann bi pronaunst nain different weyz.  Tha chaart showz tha nvmbr av different weyz thaet tha athr vaulz caen be praunst. 

41 Pronunciations - 22 single letter
a
e
i
o
u
9
7
7
9
9
5
5
4
4
4
ace, ax, calm, all, about, air, kraut
eel, etch, vein, resume, earn, her,. err, error
ice, itch, kilo, amino, pencil, circle
oak, silo, otter, ooze, cost, or, out, color
guru, rule, hook, wool, up, urban
 complete listing
Only 25 vowel sounds
17 phonemes - 340 graphemes
5 graphemes  - 41 phonemes

How many ways can a vowel be spelt? 361

The typical vowel can be spelled around 20 different ways. The total number of ways was 361 in Dewey's analysis of abridged dictionary spellings. In terms of words that one would frequently encounter, the number of different spellings drops to 216.Other researchers have come up with slightly different numbers, Yule uses 361. Coulmas [1998] uses over 1,000 basing the higher estimate on research by Nyikos [1988].

The 361 came from a dictionary with 70,000 words. The 216 came from an analysis of words found in 100,000 word of text which would involve considerably less than 70,000 different words.  80% of the words we use comes from a set of 1000 words. [Thorndike].

How phonemic is English Spelling?

This question is asked a number of ways such as, How unpredictable or irregular is English spelling?  There are probably several ways to measure predictability, regularity, and phonemicy.  The one below is among the simplest to do and understand.

The English language is 100% phonemic as are all languages.  A writing system that perfectly matched the phonemic structure of the spoken language would also be 100% phonemic. 

Shortly after England adopted the Roman alphabet, they developed the West Saxon standard which was over 85% phonemic and on par with the writing systems of any other European language.  Today the traditional writing system is only 40% phonemic.  The connection between spelling and pronunciation is worse than any other major European language. 

In the Gettysburg address, 39.7% of the words were spelled phonemically. To state this in another way, 60% of the words contain some irregularity. This means that 60% of the phonemically spelled words would contain a sound sign that would deviate from TO and introduce some "visual shock": e.g., Lake / Laek / Leik

There is no way for a consistently spelled writing system to have anymore than a 40% overlap with TO. Even when the most frequent spelling pattern is always used, 60% of the word spellings will not correspond to the dictionary.

Some reform proposals have included some concessions to TO such as allowing 40 of the Anglo-Saxon function words to continue with their irregular spelling. 40 sight words are certainly better than 20,000. Other attempts to increase the overlap between the reformed spelling and TO have resorted to positional spelling. That is, allowing more than one way to spell the same sound.

There have been many claims such as those referenced by Crystal indicating a figure of up to 85%.  The only way that this can be achieved at a word level is to allow up to four spellings per sound.  At the phoneme level, English is consistent 75% of the time.

As indicated in the table below: 47.5% of the syllables are phonemic.  In the full address, 74.3% of the sound signs are correct. 74.3% of the phonemes are spelled phonemically. 


See The Trouble with Spelling

forskor @nd sevan yirz agO Wr fqxrz brot forT on xis kontinant a nU nASn... (Unigr@f)
3 of 15 consistent with dictionary spelling (see OGD below which achieves a 50% consistent mark)

Forskoer and sevenyeerz ugo our faathers
braut fortth on this kontinunt u noo naeshun... - Cf. Dewey, p. 16 -  Full Address
words highlighted in redtranscribe correctly
Only 3 out of 15 or 20% are regular in this passage
the rate goes up to 40% for the full 265 word address.
60% of TO spellings are not alphabetical
Phonemes
Syllables
Words
75%
50%
40%
Fig. 4.  Three Answers to the question
"How Phonemic is English?"
the unit of analysis can change the result
 In OGD-positional spelling the segment would transcribe with more correctly spelled words:
 Forskor andseven yeers agoour faathers braut fortth on thiss continenta nu naytion... 7/15 (50%)
 OGD is a systematic but not a phonemic (1 sound - 1 spelling) orthographic system.

I would like to conduct this same analysis for other languages but the lack of a pronunciation
dictionary in a full text electronic format prevents this from being done easily. The issue is how
rule based the orthography is and no orthography in use is 100% rule based - there will be exceptions

What proportion of single sounds retain their TOgraphemes in New Spelling. Among the 100,.000 most frequently used words,72.1% of items are spelled phonemically in accord with the New Spelling criterion when one allows that 8 to 42 frequently used short function words to retain their TO spelling. (Words such as of, the, to, I me...)
phonemic.gif
More on the vocalization of English



In Paul R. Hanna's (1966, 1971) study of 17,000 English dictionary words showed that 84% were spelled according to a regular pattern (i.e., one of 4-6 regular patterns) and that only 3% were totally unpredictable. A widely sited figure is that English is about 75% regular. The count will be different depending on the body of words studied. The dictionary will show less irregularity than a study of the same number of words in print (newspapers, etc.). This is because there is considerable repetition in text and the irregularly spelled words are among the most frequently used.

Godless linguistics - pro-babelism
God Almighty created all languages complete when he confused mankind's original language as punishment for our transgression at the tower of Babel.  But the athiest/lingusts don't want this mentioned in public settings




References / Bibliography

Augst, Gerhard. (1986) New Trends in Graphemics and Orthography. Berlin, N.Y.: de Gruyter.

Carney, Edward. (1994) A Survey of English Spelling. London: Routledge

Coulmas, Florian (1996) Blackwells Encyclopedia of Writing Systems.  London: Blackwell

Coulmas, Florian. (1989) The Writing Systems of the World. Oxford: Basic Blackwell. 

Cragie, William A. (1930)  Problems of Spelling Reform

Crystal, David. (1987) The Cambridge Encyclopedia of Language. Cambridge: Cambridge University Press

Dewey, Godfrey. (1971) English Spelling: Roadblock to Reading. New York: Teachers College Press.

Dewey, Godfrey. (1970) Frequency of Spelling.  New York: Teachers College

Eco, Umberto. (1995) The Search for the Perfect Language. London, Blackwell

Gray, William S. (1956) The Teaching of Reading and Writing: an international survey. Unesco.

Hanna, P.R., Hanna, J.S. Hodges, R.E. & Rudorf, E.H. (1966). PhonemeGrapheme Correspondences as Cues to Spelling Improvement, Doc.OE-32008, Washington, D.C.: U.S. Dept. of Health, Education, and Welfare.USGPO

Hanna, Paul (1992) Spelling: Structure and Strategies. University Press of American

Laubach, Frank C. (1960) Let's Reform Spelling - Why and How. NY: New Readers Press

Pitman, Sir James & Robert St. John. (1970) Alphabets and Reading. London: Pitman

Pitman, Sir James. (1965) Communication by Signs, New Scientist. 25 (433) pp 580-1. March, 1965

Ronthaller, Edward and Lias, Edward. (1986) Dictionary of Simplified American Spelling.  New York: American Language Academy.

Scragg, D.G. (1974) A History of English Spelling. Manchester: Manchester University Press

Shaw, Harry. (196-) Spell It Right!  N.Y.: Harper

Smelt E. D. (1972) How To Speak, Spell & Read -- a new way to Learn English, by E.D. Smelt (1972. Melbourne YMCA, 1 City Rd., South Melbourne Vic 3205. A later edition was I think called Speak, Spell and Read English

Tauber, Abraham (ed.). (1963) Shaw: On Language. NY: Philosophical Library, (1965) Peter Owen Ltd., London


Longer bibliography    vowels  - vowel-chart   q-ref
last revised:  April, 1999
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