dispair
The answer is that there is no homophone for can, but can is a homonym.
The collective noun is a wilderness of despair. The noun despair is also a collective noun for a despair of writers, a despair of goths.
Your is a homophone of you're. In some dialects, yore is another homophone.
the homophone for stationery is stationary
The homophone is dense.
The homophone is cell.
stock homophone
what is the homophone of space
The homophone is style
There is no homophone for meant
Hour is a homophone for Our
there is no homophone for length