Nothing. The correct idiom is "ace in the hole," which literally means that you have an ace card (the highest value in the deck) hidden away somewhere so you can win the card game. It's come to mean any situation where you have a hidden advantage or something you can "pull out" to win the situation.
This is not an idiom. It is a measurement. $100,000 is how you write it in numbers.
In math ace means one i think.
This is not an idiom. "It's over" means that it is over, or finished, or done. Whatever "it" refers to has concluded.
"Bring some objectivity into the matter under discussion", don't just rely on subjective factors.
Something that has easily been or will easily be achieved. It can mean something is way ahead of something and will complete a task long before others, or has already done so.
This isn't an idiom because it's just one word that's confusing. The word "ace" in this sense is slang. It means to score highly or make a top grade.
Nothing. I believe you misheard the idiom "ace UP his sleeve," which means that the person has a secret advantage, as if he had an Ace playing card hidden in his sleeve to cheat at cards with.
This is a Southern US saying meaning 'a whole lot of' something.
There aren't any idioms that mean "black" that I know of. There are plenty of similes, like "black as the ace of spades."
This is not an idiom. It is comparing one thing to another, so it is a simile. Remember: "AS ___ AS___" means A Simile! It is just saying that something is very black.
It means talk a lot - a whole lot!
It's not really an idiom - "to account" is to tally up, add together, or count everything, so if you take something into account, you're adding the information into the whole.
It's not really an idiom. It means "what are you thinking about."
It is not an idiom, it means your nose is itching.
RFP is not an idiom. It's an abbreviation.
An ace.
The ace is the card with the highest value in the deck, so anything "ace" is the best.