There is no suffix. The prefix homo- (same) is attached to the root word phone (sound), to mean a word that sounds the same as another word, e.g. here and hear.
persecute
y
bare, bear
wee, oui
clothes, close
A homophone for "allow" that is also a synonym is "aloud."
The word "build" is a homophone for the verb/adjective "billed."
Build is a homophone of billed.
plain (homophone for plane)
Hole. The homophone to that is whole.
is there a homophone for deserve and obtain
Oh, dude, a synonym for small that is also a homophone? That's easy peasy! It's "little." Like, you know, "little" sounds like "lidl" which is totally a homophone. So, there you go, problem solved!
persecute
y
bare, bear
wee, oui
clothes, close