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Ough is a letter sequence often seen in words in the English language. In Middle English, where the spelling arose, it was pronounced with a back rounded vowel and a velar fricative (e.g., [oːx], [oːɣ], [uːx], or [uːɣ]). It is by far the sequence of letters with the most unpredictable pronunciation, having at least eight pronunciations in North American English and nine in British English (not counting place names). A few of the more common are these:
- // as in though (cf. toe).
- // as in through (cf. true).
- // as in rough (cf. ruffian).
- // as in cough (cf. coffin).
- // as in thought (cf. taut).
- // as in bough (cf. to bow).
List of pronunciations
|//||Brough, chough, enough, hough, Hough, rough, shough, slough (as verb), sough, tough||Rhymes with puff. Sough is also pronounced //.|
|//||cough, trough||Rhymes with off. Trough is pronounced // (troth) by some speakers of American English, and a baker's trough is also pronounced //.|
|//||bough, doughty, drought, plough, Slough (as place name), sough||Rhymes with how, cow. Sough is also pronounced //.|
|//||although, dough, furlough, though||Rhymes with toe, no.|
|//||bought, brought, dreadnought, fought, ought, sought, thought, wrought||Regularly so used before //, except in drought // and doughty //. Rhymes with caught. In American English, this is often // or //.|
|//||brougham, slough (as noun), through||Rhymes with true.|
|//||borough, thorough, Willoughby||Pronounced // in American English, except when destressed by a following syllable, as in thoroughly and Willoughby.|
|//, //||hiccough||Variant spelling of more common hiccup.|
|//||Greenough||Pronounced // as the name of a river in Western Australia. As a surname, it is usually pronounced //.|
|//||Clough, hough, lough, turlough||Hough more commonly spelled hock from the 20th century onwards. Lough and (tur)lough are also pronounced //.|
|//||lough, turlough||A lake; Irish cognate of Scots loch. Both also pronounced //.|
Note that "slough" has three pronunciations depending on its meaning:
- // (as in, "slogging through a slough of mud")
- // (as in "to slough off")
- // the town of Slough in the Thames Valley of England or the Slough of Despond in Pilgrim's Progress
An example sentence using the nine pronunciations commonly found in modern usage (and excluding hough, which is now a rarely-used spelling) is, "The wind was rough along the lough as the ploughman fought through the snow, and though he hiccoughed and coughed, his work was thorough."
Other pronunciations can be found in proper nouns, many of which are of Celtic origin (Irish, Scottish, or Welsh) rather than English. For example, ough can represent // in the surname Coughlin, // in Ayscough and even // in the name Colcolough (//) in Virginia.
The two occurrences of ⟨ough⟩ in the English place name Loughborough are pronounced differently, resulting in //. Additionally, three parishes of Milton Keynes—Woughton //, Loughton // and Broughton //—all have different pronunciations of the combination.
Tough, though, through and thorough are formed by adding another letter each time, yet none of them rhyme.
Some humorous verse has been written to illustrate this seeming incongruity:
- "A rough-coated, dough-faced ploughman strode, coughing and hiccoughing, thoughtfully through the streets of Scarborough."
- "O-U-G-H" by Charles Battell Loomis
- "Ough, a Phonetic Fantasy" by William Thomas Goodge
- "I take it you already know" by T. S. Watt
- "Enough Is Enough" by Rosemary Chen
Because of the unpredictability of the combination, many English spelling reformers have proposed replacing it with more phonetic combinations, some of which have caught on in varying degrees of formal and informal success. Generally, spelling reforms have been more widely accepted in the United States and less so in the Commonwealth. One problem is that a pronunciation with the velar fricative is still found locally in parts of North-East Scotland, where, for example, trough is pronounced //.
- Shorten ⟨ough⟩ to ⟨u⟩ when it is sounded as //: through → thru.
- Shorten ⟨ough⟩ to ⟨o⟩ when it is sounded as //: though → tho (but doh for dough).
- Shorten ⟨ough⟩ to ⟨ou⟩ when it is sounded as //: bough → bou, plough → plou, drought → drout.
- Change ⟨ough⟩ to ⟨au⟩ when it is sounded as //: ought → aut, bought → baut, thought → thaut.
- Change ⟨ough⟩ to ⟨of⟩ or ⟨uf⟩ (depending on pronunciation) when there is the sound //: cough → cof, enough → enuf, tough → tuf.
- hiccup instead of folk etymology hiccough
- hock instead of hough (word is rare in the United States)
- plow instead of plough (standard in American English)
Already varyingly formal
In the UK, the word dough can also be pronounced //, a pronunciation remembered in the spelling in the word duffpudding. Likewise, the word enough can be pronounced // or // and the spelling enow is an acceptable dialect or poetic spelling (e.g. "And Wilderness is Paradise enow.").
The following spellings are generally considered unacceptable in most of the Commonwealth, but are standard in the United States:
- naught instead of nought (standard in the United States, although the word is only used in the phrase "all for naught") – some archaic uses of nought have been replaced with not
- plow instead of plough (standard in the United States and Canada, with plough being occasionally used to refer to the horsedrawn variety)
- slew or sluff instead of the two corresponding pronunciations of slough (the former is very common in the United States, the latter much less so, with slough being retained in most cases)
- donut instead of doughnut
- thru instead of through: it is a common abbreviated spelling in the US and standard on road signs, where it conserves space and is quicker to read: e.g., "drive thru" for drive-through and "thru traffic" for "through traffic"
- tho and altho instead of though and although (sometimes contracted as tho' and altho')
However, both of these are considered unacceptable in British English and formal American English.
- coff instead of cough – Koffing
- laff instead of laugh (British comic variant larf) – Laffy Taffy
- enuff or enuf instead of enough – Tuff Enuff
- tuff instead of tough – Tuff Enuff, Tuff Shed
- ruff instead of rough (seldom used because it often refers to an onomatopoeia for a dog's bark)
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⟨augh⟩ is orthographically rather similar to ⟨ough⟩, but admits much less pronunciation variation:
The similar ⟨ow⟩ yields at least five standard pronunciations:
- // as in cow, now, bow (stoop), sow (pig), row (fight), glower (glare), town, owl, etc.
- // as in crow, know, bow (weapon), sow (plant), row (bank), lower (let down), own, bowl, etc.
- // as in knowledge //, acknowledge //
- // as in bowie knife //
- // as in bowdlerize // (also /-/ and /-/)
A comparable group is ⟨omb⟩, which differs however in that, unlike ⟨ough⟩, it does not ever represent a single phoneme. ⟨omb⟩ can be pronounced in at least five ways:
- /, / as in bomb // (rhymes with Tom)
- // as in comb //, clomb // (rhymes with home)
- // as in tomb //, womb // (rhymes with gloom)
- // as in aplomb // (rhymes with gum)
- // as in buncombe //, coxcombry //
When a syllable is added after the ⟨omb⟩, the ⟨b⟩ is often (but not always) pronounced, resulting in a total of at least eight pronunciations of ⟨omb⟩:
- // as in somber (UK sombre) //, rhombus //, zombie //, combat //, wombat //, etc.
- // as in Colombia //
- // as in combine //
—but not, for example, in bomber, comber, entombing, etc.
- // as in loth, lothario, quoth, sloth (UK), troth
- /, , / as in apothecary, bothy, broth, brothel, cloth, froth, Goth, moth, sloth (US), wroth
- // as in nothing
- // as in behemoth, mammoth
- // as in betroth, clothe
- /, / as in bother
- // as in another, brother, mother, other, smother
The group ⟨ong⟩ has at least nine pronunciations, though unlike with ⟨ough⟩ or ⟨omb⟩, context often suggests the correct pronunciation:
- /, , / as in long, prong, song, strong, thong, tong, wrong
- /, , / as in longer, Mongol, congress
- /, , / as in congee, longevity, longitude, pongee
- // as in among, tongue
- // as in humongous, monger, mongrel
- // as in allonge, sponge
- // as in congratulate
- // as in congeal, congest
- /, / as in mongoose
- "trough". Merriam-Webster Dictionary.
- "The American Heritage Guide to Contemporary Usage and Style", Houghton Mifflin Company.
- Bolton, H. Carrington (1891). "The Pronunciation of Folk-Names in South Carolina". The Journal of American Folklore. 4 (14): 270–272. doi:10.2307/534017. JSTOR 534017.
- "A Variable Symbol". Punch, or the London Charivari. 68. 16 January 1875.
- Ough, a Phonetic Fantasy
- Watt, T. S. (21 June 1954), "Brush Up Your English", The Guardian. Reprinted in Fromkin, Victoria; Rodman, Robert; Hyams, Nina (2014), An Introduction to Language (10th ed.), Wadsworth, p. 220, ISBN 978-1-133-31068-6.
- Roberts, Alan (28 March 2004). ""ough" poem". Retrieved August 27, 2017.
- "The Society's 1984 Proposals". Journal of the Simplified Spelling Society (February 1988).
- "Tough Though Thought – and we call it correct spelling!". Simplified Spelling Society (1984).
- Example: "ROAD CLOSED TO THRU TRAFFIC", sign R11-4, Manual on Uniform Traffic Control Devices