My day job is keeping me stupid busy, but it has inspired today’s tip: If you don’t know for sure and certain what a word means, for God’s sake, either dig out your dictionary or use a word you do know in copy that anyone else will see.
Tantamount does not mean the same thing as paramount.
A pyrrhic victory is not one that ends in a tie.
Arcane does not mean the same thing as peripheral.
And so on.