Series and serious homonyms?

Hi, it just occurred to me that series and serious are pronounced the same way, that is, they are homonyms, right?

They’re not pronounced the same way. Series is pronounced [sIri:z], and serious is pronounced [sIriy@s] (The character @ is supposed to indicate a schwa.) Series has two syllables, and serious has three.

Also notice that “series” ends in a [z] sound, and “serious” ends in an [s] sound.