The homonym of "drenched" is "drentched."
The answer is which, but you mean homophone, not homonym.
The homonym for 'census' is 'sense'.
Was is a linking verb. It does not have a homonym.
The homonym for 'suite' is 'sweet'.
The homonym for "vale" is "veil."
The homonym of sauce is "source".
A homonym for "grays" is "greys."
The homonym for chord is cord.
The homonym for "mourning" is "morning".
Hour is a homonym for our.
The homonym for 'build' is 'billed'.