How to tell /uː/ and /ʊ/ apart

/uː/ is longer and tenser. /ʊ/ is shorter and more relaxed.

/uː/
Long U

food /fuːd/

A long, tense back vowel. Lips are rounded and the sound is held longer.

Common mistake: Learners often shorten /uː/, making food sound like foot.

/ʊ/
Short U

foot /fʊt/

A short, relaxed back vowel. Lips are rounded but less tense than /uː/.

Common mistake: Learners often pronounce /ʊ/ too long, making foot sound like food.

  • /uː/ is long: food, pool, Luke.
  • /ʊ/ is short: foot, pull, look.
  • Keep your lips rounded for both sounds.
  • The biggest difference is length and tension.

Minimal pairs

food/fuːd/
foot/fʊt/
pool/puːl/
pull/pʊl/
Luke/luːk/
look/lʊk/