Do you use a or an before the word opossum?

my experience would tell me to use ';an'; because opossum starts with a vowel - I prounounce it with the ';o';





the ';o'; is silent in some accents, I think it depends where you are from, what your accent is, and how you pronounce words :-)Do you use a or an before the word opossum?
you use ';a';. The ';o'; is silentDo you use a or an before the word opossum?
the correct use would be ';an'; Opossum even though the o is silent