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fend and prove
dated To argue and defend a point or opinion. I was forced to fend and prove my stance before the tribunal.
be the exception that proves the rule
To contradict a rule and thus confirm that the rule exists. Primarily heard in Australia. A: "We're always told to get eight hours of sleep, but I usually feel really groggy when I sleep that much." B: "Well, I guess you're the exception that proves the rule."
have something to prove
To need to display and confirm one's abilities to others who are doubtful. His parents expect his art career to fail, so he definitely has something to prove with this art show.
prove (one's) mettle
To prove that one has endurance and strength of character, or the necessary skills, abilities, or traits to succeed in something. You may be the youngest lawyer in the firm, but you certainly proved your mettle in that high-profile murder case. The new CEO proved her mettle when she joined the company in 2012 and completely restructured their dying mobile phone division into the powerhouse it is today.
1. To show the validity of something. A noun or pronoun can be used between "prove" and "out." If you can prove out these allegations, that company will soon be faced with a scandal.
2. To succeed. A noun or pronoun can be used between "prove" and "out." My hypothesis still has not proved out, and I can't determine why.
The exception proves the rule.
Prov. Something that does not follow a rule shows that the rule exists. (Often used facetiously, to justify some rule you have proposed but which someone else has listed exceptions. From a Latin phrase meaning that an exception tests a rule.) Ellen: Men are always rude. Jane: But Alan's always polite. And Larry and Ted are polite, too. Ellen: They're just the exceptions that prove the rule. Bill: All the shows on TV are aimed at people with low intelligence. Alan: What about that news program you like to watch? Bill: The exception proves the rule.
prove oneself as something
to demonstrate that one can serve in a certain office or capacity. It's time to promote her. She has proved herself as a teller. I proved myself as an investor by making a lot of money in the stock market.
prove something to someone
to substantiate a claim about something to someone; to make someone believe or accept a statement about something. What do I have to do to prove my innocence to you? Nothing you say will prove it to me.
prove to be something
to be shown to be someone or something; to be found to be someone or something. Susan proved to be a good friend when she lent me some money. The food proved to be spoiled when I smelled it.
What does that prove?
Fig. So what?; that does not mean anything. (A defensive expression. The heaviest stress is on that. Often with so, as in the examples.) Tom: It seems that you were in the apartment the same night that it was robbed. Bob: So, what does that prove? Tom: Nothing, really. It's just something we need to keep in mind. Rachel: You're late again on your car payment. Jane: What does that prove? Rachel: Simply that you can't afford the car and we are going to repossess it.
exception proves the rule, the
An instance that does not obey a rule shows that the rule exists. For example, John's much shorter than average but excels at basketball-the exception proves the rule . This seemingly paradoxical phrase is the converse of the older idea that every rule has an exception. [Mid-1600s]
Succeed, turn out well, as in Farm-raised trout has proved out so well that the fish industry plans to experiment with other species . [Mid-1900s]
the exception that proves the rule
You say that something is the exception that proves the rule to mean that the example that you have just mentioned is not normal and is the opposite of what you usually find. Towers should generally be arranged in clusters, but the Post Office Tower was the exception that proved the rule — it needs to stand alone so that its signals are not interrupted. The most creative minds are often said to be the product of a problematic childhood, but Hornby must be the exception that proves the rule. Note: `Prove' here means `to test by experiment or analysis' rather than `to establish as true'. So, the meaning is that an exception tests a rule, not that it establishes the rule as true in all other situations.