Rail is its own homonym
Rail can also mean harshly, criticize
Homonyms are words with different meanings but sound the same, some have the same spelling
You have guard the profession, the object as in a guard rail, the verb as in to guard something. Many homonyms.
"Drenched" does not have a homonym.
Hour is a homonym for our.
"Sweet" is a homonym for "suite."
"Senses" is a homonym for "census."
Was is a linking verb. It does not have a homonym.
The homonym for "mourning" is "morning".
The homonym for chord is cord.
The homonym for sauce is source :)
Homonym for grays is graze
The homonym for vale is veil.
"Billed" is a homonym of "build."