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forewarned is forearmed

One can be appropriately prepared if one knows something in advance. Hey, just so you know, the boss is in a really foul mood today. Forewarned is forearmed, right?
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forewarn (someone) about (something)

To inform someone of something in advance. Thanks for forewarning me about the boss's foul mood today—I made sure to steer clear of him.
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forewarn (someone) of (something)

To inform someone of something in advance. Thanks for forewarning me of the boss's foul mood today—I made sure to steer clear of him.
See also: forewarn, of

forewarn someone about something

 and forewarn someone of something
to warn someone about someone or something. They forewarned us of your strange behavior. Didn't we forewarn you about Max's problem?
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Forewarned is forearmed.

Prov. If you know about something beforehand, you can prepare for it. Before you meet Lily, I should tell you that she's a little eccentric. Forewarned is forearmed, right? Check the temperature before you go outside. Forewarned is forearmed.
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forewarned is forearmed

Knowledge in advance enables one to be prepared, as in Let me know when he's in town so I can take the phone off the hook-forewarned is forearmed. This expression originated as a Latin proverb, Praemonitus, praemunitus, which was translated into English by the early 1500s. It soon was put to broader use than its original military applications.
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forewarned is forearmed

People say forewarned is forearmed to mean that if you know about something which is going to happen in the future, you can be ready to deal with it. Find out what side-effects you will have to expect from the treatment, because forewarned is forearmed. Forewarned is forearmed. Even the most enthusiastic guidebooks admit that the food on the train is awful.
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foreˌwarned is foreˈarmed

(saying) if you know about problems, dangers, etc. before they happen, you can be better prepared for them: Jim says that Betty is very angry with me still. Well, forewarned is forearmed, and I’ll have to think up an excuse before I see her.
Fore- in these words means ‘before something happens’ or ‘in advance’.
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References in periodicals archive ?
Meanwhile, some of the harsher conditions contemplated by Forewarn are already a reality in some states, which have adopted "mini-WARN" statutes, with increased notice periods and higher penalties.
Forewarn would also change the enforcement scheme for violations of the statute.
However, even voluntary separations would become riskier under Forewarn.
Like Forewarn, ALERT seeks to close perceived loopholes in WARN and would encompass smaller layoffs.
Delco and its parent company - Hughes Aircraft Company - joined forces in a venture called HE Microwave to develop the Forewarn system.
A special digital signal processor alerts the driver only when a moving vehicle is within the range of Forewarn SDS's sensor, allowing him or her time to take evasive action.
According to Delco, Forewarn SDS "sees" equally well in rain, fog, sleet, snow and mud, is virtually impermeable to the elements, and will operate in temperatures from -40 to 70 degrees C.
For example, if we can connect these links together, we can forewarn the earthquake.
1872-75, forewarns, by its very title, that vulgar illusionism is out of the picture.
In the window a citation from II Peter 3:10 forewarns of the fiery end of the world; another citation follows (Isaiah 54:10), affirming God's everlasting love for creation.
A detailed discussion of the structure of a national multiracial political coalition is beyond the scope and purpose of this short book," Wilson forewarns, and instead of detailing what such a coalition might entail, Wilson devotes much of the book to a less than fully persuasive defense of race-based programs.
McDonald's stated goal," forewarns Brownell, "is to have no American living more than four minutes away from one of its restaurants.