Wikipedia finds homonyms to mean all sorts of different things, but none of them are what you're saying. Dissent and decent are not spelled the same and if they sound the same then you're pronouncing them wrong. Decent is pronounced dee-sint and dissent is pronounced dis-sent. Descent and dissent are pronounced the same though.
"If all mankind minus one, were of one opinion, and only one person were of the contrary opinion, mankind would be no more justified in silencing that one person, than he, if he had the power, would be justified in silencing mankind."
~John Stuart Mill~
Wikipedia finds homonyms to mean all sorts of different things, but none of them are what you're saying. Dissent and decent are not spelled the same and if they sound the same then you're pronouncing them wrong. Decent is pronounced dee-sint and dissent is pronounced dis-sent. Descent and dissent are pronounced the same though.
"If all mankind minus one, were of one opinion, and only one person were of the contrary opinion, mankind would be no more justified in silencing that one person, than he, if he had the power, would be justified in silencing mankind."
~John Stuart Mill~