A homophone for "decease" is "decease," which sounds the same but has different meanings. In this context, it refers to the act of dying or the state of being deceased. However, there is no commonly used homophone that fits the criteria, as "decease" primarily stands alone in pronunciation.
Homonyms are words that are spelled and pronounced the same, but have different meanings (bear, bear). Homonym is sometimes, and confusingly, used interchangeably with homophone. Homophones are words that are pronounced the same regardless of their spelling (heir, air, ere). Homographs are words that are spelled the same regardless of their pronunciation (incense, incense; desert, desert). I can find no homonyms, homophones, or homographs for decease.
demisedepartextinctionpassingperishdropcease
demise
The answer is that there is no homophone for can, but can is a homonym.
bury or cremate them
fallecimiento
Him is the homophone for hymn.
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.
The homophone is ail.