Isthmus is a noun.
The answer is which, but you mean homophone, not homonym.
A homonym for "grays" is "greys."
The homonym for 'suite' is 'sweet'.
Was is a linking verb. It does not have a homonym.
Unending, intending...
integrity
Integrity
The cast of An Unbending People - 2011 includes: Assaf Cohen as Aaron Robin Sachs
linear, unbending
An Isthmus is a narrow strip of land that connects two larger bodies of land with water on both sides. The Isthmus of Panama, Isthmus of Corinth, Isthmus of Perekop, Isthmus of Gibraltar, Isthmus of Suez are all examples
The Isthmus of Panama connects South America with countries north of Panama. The Isthmus of Panama is located in Panama, which is part of Central America.
The Isthmus of Panama connects Colombia with the countries north of Panama. The Isthmus of Panama is located in Panama.
Isthmus of Panama, Central America - the isthmus joining North America and South America, Isthmus of Corinth - a narrow isthmus between the Gulf of Corinth and the, Isthmus of Kra - a narrow isthmus linking the Malay Peninsula to the Asian
rigid, firm, inflexible, unbending
The Isthmus of Panama is the largest isthmus located in Central America.
The Isthmus Of Panama.