How to Pronounce OUGH in English: 7 Ways

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English is not a phonetic language, so you cannot always look at a word and know how to say it. The letters OUGH are the classic example: they appear in many common words but do not always sound the same.

In fact, OUGH can be pronounced in seven different ways. This guide gives you all seven with example words and a simple “sounds like” for each, plus three exercises so you can test yourself.

Why OUGH is so tricky

The seven pronunciations of OUGH are not random mistakes, they are the result of centuries of sound changes in English while the spelling stayed the same. That is why one spelling can hide seven sounds, and why even native speakers sometimes hesitate.

The practical answer is to learn the sound of each OUGH word as you meet it. The table below groups the words so the patterns are easier to remember.

The seven ways to pronounce OUGH

Each row shows the sound, some common example words and a familiar word it sounds like. The example words are the ones worth memorising first.

Sound Example words Sounds like
/ɔː/ (+ t) bought, brought, thought, fought, sought, ought port (the gh is silent)
/ɒf/ cough, trough off
/ʌf/ rough, tough, enough puff
/əʊ/ dough, though, although go (the gh is silent)
/uː/ through too
/ə/ borough, thorough a weak “uh” (schwa)
/aʊ/ bough, plough, slough cow / flower
Two warnings: the gh is silent in the “port” and “go” groups, so do not add a /g/ sound; and be careful not to turn the ht in bought and thought into a th sound. In borough and thorough the stress falls on the first syllable, so the ough is very weak.

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How to learn these

There is no real shortcut: because these pronunciations come from the history of English, the best approach is to learn the sound of each word as part of the word itself.

Two habits help a lot. When you learn a new word that contains ough, learn its pronunciation at the same time, and use an online dictionary with audio so you always hear the correct sound before you say it.

Practice exercises on OUGH pronunciation

Try these three exercises to check the OUGH sounds.

Exercise 1. Read each sentence and choose the pronunciation of the OUGH word.

Exercise 2. More sentences: choose the pronunciation of the OUGH word.

Exercise 3. Complete each sentence with the correct OUGH word.

Quick self-check

Choose the answer, then reveal the solutions.

1. How is the ough in thought pronounced?
2. Which word rhymes with “cow”: through or plough?
3. Do tough and dough have the same ough sound?

Show answers

1. Like “port”, /ɔːt/ (the gh is silent).   2. plough /aʊ/.   3. No: tough sounds like “puff” /ʌf/, dough sounds like “go” /əʊ/.

How did that feel? Recognising the sounds in an exercise is one thing. Saying through, thought and enough correctly in conversation is the goal. In a free trial lesson, an experienced native teacher will listen and fix the words that trip you up.

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Frequently asked questions

How many ways can you pronounce OUGH?
Up to seven, depending on the word: as in bought, cough, rough, dough, through, borough and plough. That is why OUGH is one of the trickiest spellings in English.
Why does English spell so many sounds with OUGH?
Because the spelling was fixed centuries ago and the pronunciation kept changing. The letters stayed the same while the sounds drifted apart, so today one spelling stands for seven sounds.
What is the most common OUGH sound?
The “port” sound /ɔː/, found in very common past-tense verbs like bought, brought, thought and fought. The gh is silent, and the ending sounds like the word “ought”.
How do you pronounce “through”?
It sounds like “too”, /θruː/. Many learners over-complicate it, but it is the simplest OUGH word: the ough is just an “oo” sound.
Is there a rule for OUGH, or do I just memorise it?
There is no reliable rule; the pronunciation is historical. Learn the sound of each word as you meet it, group the common words as in the table above, and check new words in an audio dictionary.

Key takeaways

  • OUGH can be pronounced seven different ways, and the spelling never tells you which.
  • The most common is the “port” sound (bought, thought), where the gh is silent.
  • through sounds like “too”; rough and tough sound like “puff”; dough and though sound like “go”.
  • In borough and thorough the ough is a very weak “uh” sound.
  • There is no shortcut: learn each word’s sound as you meet it and check it in an audio dictionary.

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Written and reviewed by the experienced native English teachers at Live English, online since 2007.