A homophone for something round is "pear" and for shout loudly is "bellow."
A homonym for something round and shout loudly could be "ball" and "bawl."
bawl and ball
A homophone for "shout loudly" is "shout loudly," which sounds the same but is spelled differently and has a different meaning.
dh
The homophone for "shout loudly" is "shout loudly." Homophones are words that sound the same but have different spellings and meanings.
loudly or quickly
What is a shout?
shout
loudly
to shout out loudly at someone
loudly