How to pronounce “ostracisa” in English

So even though I knew that gay marriage was being legalized in different places, I still had no direct examples in my life of people who are gay, where that did not resultin complete ostracisation, or ostracism, or rejection, or stigma attached to them.So growing up in the community I did, if you wanted to be a successful, respectable person, being gay was incompatible with that.