What words have the same vowel sound as grouch?

Here are some words that have the same vowel sound as "grouch":

* ouch

* cow

* how

* now

* out

* proud

* south

* house

* mouse

* about

* around

* cloud

* found

* sound

* count

* ground

* mountain

* fountain

The vowel sound in "grouch" is a long "ou" sound, similar to the "ow" sound in words like "cow."