List of Words Containing the Short OO /ʊ/ Sound

The spelling double O (OO) can have more than one sound in English. Usually it is either the long OO /u/, as in the word food, which is the same thing as the long U sound, or else it's the short OO /ʊ/ sound, as in the word foot. If you have to guess which one it is, guess the long OO /u/, because that pronunciation is much more common. However, there are a number of common words which have the short OO /ʊ/ sound, so it's good to learn them.
Here's an alphabetical list of the root words that have OO making the short OO /ʊ/ sound:
brook
cook
crook
foot
good
hood
hoof
hook
look
rook
rookie
shook
soot
stood
took
whoops
wood
woof
wool
Now remember, these are the root words, so there will be lots more words made from these roots, such as childhood, cookie, football, understood, hoodie, outlook, goodbye, etc.
And the /ʊ/ sound has other spellings as well, including O, OUL, and U. Here's a list of words with these spellings of the sound:
bosom
bull
bullet
bulletin
bully
bush
butcher
cushion
could
full
pudding
pull
pulpit
push
put
should
sugar
wolf
would
Hope that helps!
Did I miss any words? Let me know in a comment if you can think of any more!