Short U

What is it?

Short ⟨u⟩ can variably represent either /ʊ/ or /ʌ/, as a result of the foot–strut split.

Originally, the short u represented one vowel. Later, in many dialects (especially Southern British English), that vowel split into two different vowels.
This historical change is called the FOOT–STRUT split.

Pronunciation Example Words Notes
/ʊ/ (FOOT vowel) put, pull, full, bull, bush, butcher, cushion, woman, wolf A short, rounded vowel. Mainly found after the FOOT–STRUT split in words that retained the older /ʊ/ sound.
/ʌ/ (STRUT vowel) cut, cup, sun, luck, mud, run, much, nut, duck, under A short, central vowel. In Southern British English and most other dialects with the FOOT–STRUT split, many historical /ʊ/ vowels shifted to /ʌ/.

The J sound

The initial /j/ ("y" sound) is optional in many words.

Word Conservative British (RP) General American Difference
tune /tjuːn/ /tuːn/ /j/ ("y" sound) dropped in American English
tube /tjuːb/ /tuːb/ Yod-dropping after /t/
Tuesday /ˈtjuːzdeɪ/ /ˈtuːzdeɪ/ Yod-dropping after /t/
student /ˈstjuːdənt/ /ˈstuːdənt/ Yod-dropping after /st/
duke /djuːk/ /duːk/ Yod-dropping after /d/
duty /ˈdjuːti/ /ˈduːti/ Yod-dropping after /d/
new /njuː/ /nuː/ Yod-dropping after /n/
news /njuːz/ /nuːz/ Yod-dropping after /n/
nuisance /ˈnjuːsəns/ /ˈnuːsəns/ Yod-dropping after /n/
suit /sjuːt/ (less common today) or /suːt/ /suːt/ Many modern British speakers also drop the /j/.
assume /əˈsjuːm/ (traditional) or /əˈsuːm/ /əˈsuːm/ Variable even within British English.
rune /rjuːn/ (traditional) or /ruːn/ /ruːn/ Yod often dropped in modern speech.