How Can I Spell It Correctly if I Hear It Incorrectly?

Take absorb and absorption.  It's a b or p thing, and which is it?   In fast conversation, who pronounces it correctly? That leads to proNOUNce and proNUNciation themselves.  And once and for all, there is no such word as theirselves, and one hears it every day.  Finally, NO theirselves. How about nickel vs. fickle?  Harass vs. embarrass? The correct pronunciation of February?  Forget the u [...]