Here is one of the most reliable rules in English pronunciation: when you see the letters OO followed by K, the vowel is always the short /ʊ/ sound (as in "good"), never the long /uː/ sound (as in "food").
The Rule
OO + K = /ʊk/ (short OO). Always. No exceptions in common English words.
This means every time you see "ook" in a word, you say it like the "oo" in "good" or "put," not like the "oo" in "moon" or "too."
Why This Matters
English has two OO sounds, and learners often mix them up. The long /uː/ (as in "food, moon, too") and the short /ʊ/ (as in "good, put, look") sound very different to native speakers. Using the wrong one can cause confusion or make your speech harder to understand.
All the Common OOK Words
More examples: brook, crook, nook, rook, overlook, mistook, handbook, notebook, textbook, outlook.
Compare: OO Before K vs. OO Before Other Letters
| OO + K (always /ʊ/) | OO + other letters (usually /uː/) |
|---|---|
| book /bʊk/ | boot /buːt/ |
| cook /kʊk/ | cool /kuːl/ |
| look /lʊk/ | loop /luːp/ |
| hook /hʊk/ | hoop /huːp/ |
| took /tʊk/ | tool /tuːl/ |
Why Does This Rule Work?
Historically, the /k/ sound after OO caused the vowel to stay short. While many other OO words shifted to the long /uː/ during the Great Vowel Shift, the ones before K kept their shorter pronunciation. The result is a perfectly consistent pattern you can rely on.
The Short /ʊ/ Sound: How to Make It
- Relax your lips. Do not round them as much as for /uː/.
- Keep your tongue slightly lower and more central than for /uː/.
- Make a short, relaxed sound. Think of it as a lazy, quick "oo."
Common mistake: many learners round their lips too much and push the sound forward, turning "book" into something closer to "buke." Keep it relaxed.
Practice Sentences
- The cook took a look at the book. (four /ʊk/ sounds in one sentence)
- I shook the hook off the nook.
- Don't overlook the notebook on the shelf.
Other Letters That Keep OO Short
While OO + K is the most reliable pattern, OO is also short /ʊ/ in a few words before D (good, hood, wood, stood, foot) and before L in "wool." However, these have more exceptions (food, mood, pool, fool all use /uː/). The K pattern is uniquely consistent.
Quick Summary
See OOK? Say /ʊk/. Every single time. This is one rule in English pronunciation that never lets you down.