Some objects are masculine gender and some feminine gender. Is there a way of knowing which is which our should we simply memorize the definite article along with the noun?
Well, one month ago I posted a link here to help this guy's doubt, and I think he has already seen it. It was such a huge text from a site, so I've removed it because it was flooding here (that's what I think, to be honest). Anyway, if you want to know, just go by this link, I hope it helps :)
Why does it say "O pão" meaning "The bread" instead of "A pão" which also, i think means the bread?
"A" = The (for
"Pão" is masculine, so only "o" works here.
A bread = um pão.