Phonemic representation Letters in English orthography positioned at one location within a specific word usually represent a particular
phoneme. For example,
at consists of 2 letters and , which represent and , respectively.
Sequences of letters may perform this role as well as single letters. Thus, in
thrash , the
digraph (two letters) represents , and the digraph represents . In
hatch , the
trigraph represents . Less commonly, a single letter can represent multiple successive sounds. The most common example is , which normally represents the consonant cluster (for example, in
tax ). The same letter (or sequence of letters) may be pronounced differently when occurring in different positions within a word. For instance, represents at the end of some words (
tough ) but not in others (
plough ). At the
beginning of syllables, is pronounced , as in
ghost . Conversely, is never pronounced in syllable onsets other than in
inflected forms, and is almost never pronounced in
syllable codas (the proper name
Pittsburgh is an exception). Some words contain
silent letters, which do not represent any sound in modern English pronunciation. Examples include the in
talk,
half,
calf, etc., the in
two and
sword, as mentioned above in numerous words such as
though,
daughter,
night,
brought, and the commonly encountered
silent (discussed further below).
Word origin Another type of spelling characteristic is related to word origin. For example, when representing a vowel, represents the sound in some words
borrowed from
Greek (reflecting an original
upsilon), whereas the letter usually representing this sound in non-Greek words is the letter . Thus,
myth is of Greek origin, while
pith is a
Germanic word. However, a large number of Germanic words have in word-final position, especially when deriving from an
Old English -iġ (modern -y). Some other examples are pronounced (which is most commonly ), and pronounced (which is most commonly or ). The use of these spellings for these sounds often marks
words that have been borrowed from Greek. Some researchers, such as Brengelman (1970), have suggested that, in addition to this marking of word origin, these spellings indicate a more formal level of
style or
register in a given text, although Rollings (2004) finds this point to be exaggerated as there would be many exceptions where a word with one of these spellings, such as for (like
telephone), could occur in an informal text.
Homophone differentiation Spelling may also be useful to distinguish in
written language between
homophones (words with the same pronunciation but different meanings), and thus resolve potential
ambiguities that would arise otherwise. However in most cases the reason for the difference is historical, and it was not introduced to resolve ambiguity. ;Examples •
heir and
air are pronounced identically in most dialects, but spelled differently. •
pain and
pane are both pronounced but have two different spellings of the vowel . This arose because the two words were originally pronounced differently:
pain used to be pronounced as , with a diphthong, and
pane as , but the diphthong merged with the long vowel in
pane, making
pain and
pane homophones (
pane–pain merger). Later became a diphthong . •
break and
brake: (''She's breaking the car
vs. She's braking the car''). Nevertheless, many homophones remain that are unresolved by spelling (for example, the word
bay has at least five fundamentally different meanings).
Marking sound changes in other letters Some letters in English provide information about the pronunciation of other letters in the word. Rollings (2004) uses the term "markers" for such letters. Letters may mark different types of information. often marks an altered pronunciation of a preceding vowel. In the pair
mat and
mate, the of
mat has the value , whereas the of
mate is marked by the as having the value . In this context, the is not pronounced, and is referred to as a "
silent e". Also, in
once indicates that the preceding is pronounced , rather than the more common value of in word-final position as the sound , such as in
attic . A single letter may even fill multiple pronunciation-marking roles simultaneously. For example, in the word
ace, marks not only the change of from to , but also of from to . In the word
vague, marks the long sound, but keeps the hard rather than soft.
Doubled consonants usually indicate that the preceding vowel is pronounced short. For example, the doubled in
batted indicates that the is pronounced , while the single of
bated gives . Doubled consonants only indicate any lengthening or
gemination of the consonant sound itself when they come from different morphemes, as with the in
unnamed (
un+
named).
Multiple functionality Any given letters may have dual functions. For example, in
statue has a sound-representing function (representing the sound ) and a pronunciation-marking function (marking the as having the value opposed to the value ).
Underlying representation Like many other
alphabetic orthographies, English spelling does not represent non-contrastive
phonetic sounds (that is, minor differences in pronunciation which are not used to distinguish between different words). Although the letter is pronounced by most speakers with
aspiration at the beginning of words, this is never indicated in the spelling, and, indeed, this phonetic detail is probably not noticeable to the average native speaker not trained in phonetics. However, unlike some orthographies, English orthography often represents a very abstract
underlying representation (or
morphophonemic form) of English words. In these cases, a given
morpheme (i.e., a component of a word) has a fixed spelling even though it is pronounced differently in different words. An example is the
past tense suffix -, which may be pronounced variously as , , or (for example,
pay ,
payed ,
hate ,
hated ). As it happens, these different pronunciations of - can be predicted by a few
phonological rules, but that is not the reason why its spelling is fixed. Another example involves the vowel differences (with accompanying stress pattern changes) in several related words. For instance,
photographer is derived from
photograph by adding the
derivational suffix -. When this suffix is added, the vowel pronunciations change largely owing to the moveable stress: Other examples of this type are the - suffix (as in
agile vs.
agility,
acid vs.
acidity,
divine vs.
divinity,
sane vs.
sanity). See also:
Trisyllabic laxing. Another example includes words like
mean and
meant , where is pronounced differently in the two related words. Thus, again, the orthography uses only a single spelling that corresponds to the single morphemic form rather than to the surface phonological form. English orthography does not always provide an underlying representation; sometimes it provides an intermediate representation between the underlying form and the surface pronunciation. This is the case with the spelling of the regular
plural morpheme, which is written as either - (as in
tat, tats and
hat, hats) or - (as in
glass, glasses). Here, the spelling - is pronounced either or (depending on the environment, e.g.,
tats and
tails ) while - is usually pronounced (e.g.
classes ). Thus, there are two different spellings that correspond to the single underlying representation || of the plural suffix and the three surface forms. The spelling indicates the
insertion of before the in the spelling -, but does not indicate the
devoiced distinctly from the unaffected in the spelling -. The abstract representation of words as indicated by the orthography can be considered advantageous since it makes etymological relationships more apparent to English readers. This makes writing English more complex, but arguably makes reading English more efficient. However, very abstract underlying representations, such as that of Chomsky & Halle (1968) or of
underspecification theories, are sometimes considered too abstract to accurately reflect the
communicative competence of native speakers. Followers of these arguments believe the less abstract surface forms are more "psychologically real" and thus more useful in terms of
pedagogy. == Diacritics ==