long oo
Core Rule
The long oo sound is typically pronounced /uː/, a sustained and tense vowel. It is most commonly spelled oo, especially in stressed syllables, as in moon or food. Compared with the short /ʊ/ sound (as in book), /uː/ is longer and clearer, making it a key contrast in phonics instruction.
Articulation Guide
Raise the back of the tongue slightly, keep it tense, and round the lips forward. Airflow should be smooth and continuous, with no jaw movement. Holding the lip shape helps maintain vowel length.
Word Analysis
- afternoon: Stress falls on noon, where oo → /uː/. The long vowel is stable and clearly audible in this compound word.
- balloon: The final syllable -loon contains a strong /uː/ sound. Avoid shortening it to /ʊ/.
- approval: Pronounced /əˈpruːvəl/, the /uː/ sound appears without the oo spelling. This example highlights that long /uː/ is a sound category, not a spelling guarantee.
Common Pitfalls
Not every oo spells /uː/. Words like book and good use /ʊ/. Learners must combine spelling patterns with stress and lexical familiarity.
Phonics Breakdown
Sound Reference
Common Mistakes
Example Words
All Words (105)
afternoon approval balloon bamboo bathroom bedroom bloom boom boost boot booth bridegroom brood broom canoe cartoon cartoonist choose choosy classroom cocoon cool disapproval disapprove do doom food fool foolish gloom gloomy goose groove hitherto honeymoon hoop into kangaroo lagoon liverpool loom loop loophole loose loosen loot maneuver mood moody moon mooncake moonless moonlight move mushroom nonfood noodle noon onto pool proof proofread removal remove renewable roof room root routine school schoolbag schoolhouse screw shampoo shoe shoelace shoot smooth soon soothe spoon spoonful stool stoop taboo too tool tooth toothbrush toothpaste toothpick troop truthful typhoon undo washroom waterproof whoever wound you zoo zookeeper zoological zoology zoom