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10 Words With Difficult-to-Remember Meanings

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Sometimes there are words that you've seen, read, and maybe even used in conversation whose meaning you can never keep straight. Even after looking it up, the right definition doesn't stick. From our friends at Vocabulary.com, here are 10 words with definitions that can be difficult to remember. Some look like they have a negative element in them, but either because their positive counterpoint has fallen out of use or because it never existed in the first place, the word doesn't really have a negative sense. Other words below are often confused for their opposite or have come to have connotations not quite reflected in their dictionary definitions.

1. NONPLUSSED

filled with bewilderment

If it looks like there's a negative at the beginning of this word, it's because etymologically speaking, there is—it's from Latin non plus, "no more, no further." Still, there is no word plussed, and that can get confusing.

2. INCHOATE

only partly in existence; imperfectly formed

It may look like the in- at the start of this word would be the same as the one at the start of words like incomplete or inadequate. Although that may be a good way to remember it, the first letters of this word are not a negative. The word comes from Latin inchoare, which meant "to begin." Inchoate things are often just beginning.

3. and 4. CACHET and PANACHE

an indication of approved or superior status;

distinctive and stylish elegance

Shades of meaning between cachet and panache are often confused. Cachet is more about prestige, and panache is more about style. Having high tea at Buckingham Palace can have a lot of cachet in your social circle, but the genteel way you sip your tea can have a lot of panache.

5. INDEFATIGABLE

showing sustained enthusiastic action with unflagging vitality

In Latin, it was possible to defatigare or "to tire out," but only the negative version prefixed with in- survived the journey into English (via French). Indefatigable is a word you almost have to say quickly, and if you get through all those syllables, it's almost as if you've proven the definition: it takes "unflagging vitality" to reach the end.

6. UNCANNY

surpassing the ordinary or normal

The word canny is rare but not unknown as a word that means "cunning" or "sly." The only problem is that that's not the meaning of canny contained in uncanny. Canny used to mean "knowing and careful," and therefore uncanny meant "mischievous," coming to refer to supernatural spirits who toyed with mortals. Comic book fans have a huge head start with this word, having grown up with the "Uncanny X-Men," who all have supernatural powers.

7. UNABASHED

not embarrassed

This word is one where the positive version did exist but has fallen out of use. Abash meant "perplex, embarrass, lose one's composure" in the late 14th and early 15th centuries, so unabashed means "not embarrassed."

8. DILATORY

wasting time

This word is confusing because it sounds like it's potentially related to words like dilate or even depilatory. It's not related to either of those words, but luckily there are ways to remember what dilatory actually means—the word almost sounds like delay or dilly dally, both of which relate to the word's definition.

9. MARTINET

someone who demands exact conformity to rules and forms

This word looks and sounds like marionette, the stringed puppet, which is a pitfall to avoid, because it can lead you to believe that martinet means the exact opposite of what it actually means. A martinet has some power, and no one is pulling their strings.

10. HOI POLLOI

the common people generally

This is confusing because it's an obscure word for the common folk, and sometimes it's hard to keep straight whether the upper or lower crust is being discussed. Hoi polloi literally means "the many," with polloi being the plural of the well-known Greek prefix poly.

To see more words with difficult-to-remember meanings, and to add them to your vocabulary-learning program, see the full list at Vocabulary.com.

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iStock // Ekaterina Minaeva
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Man Buys Two Metric Tons of LEGO Bricks; Sorts Them Via Machine Learning
May 21, 2017
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iStock // Ekaterina Minaeva

Jacques Mattheij made a small, but awesome, mistake. He went on eBay one evening and bid on a bunch of bulk LEGO brick auctions, then went to sleep. Upon waking, he discovered that he was the high bidder on many, and was now the proud owner of two tons of LEGO bricks. (This is about 4400 pounds.) He wrote, "[L]esson 1: if you win almost all bids you are bidding too high."

Mattheij had noticed that bulk, unsorted bricks sell for something like €10/kilogram, whereas sets are roughly €40/kg and rare parts go for up to €100/kg. Much of the value of the bricks is in their sorting. If he could reduce the entropy of these bins of unsorted bricks, he could make a tidy profit. While many people do this work by hand, the problem is enormous—just the kind of challenge for a computer. Mattheij writes:

There are 38000+ shapes and there are 100+ possible shades of color (you can roughly tell how old someone is by asking them what lego colors they remember from their youth).

In the following months, Mattheij built a proof-of-concept sorting system using, of course, LEGO. He broke the problem down into a series of sub-problems (including "feeding LEGO reliably from a hopper is surprisingly hard," one of those facts of nature that will stymie even the best system design). After tinkering with the prototype at length, he expanded the system to a surprisingly complex system of conveyer belts (powered by a home treadmill), various pieces of cabinetry, and "copious quantities of crazy glue."

Here's a video showing the current system running at low speed:

The key part of the system was running the bricks past a camera paired with a computer running a neural net-based image classifier. That allows the computer (when sufficiently trained on brick images) to recognize bricks and thus categorize them by color, shape, or other parameters. Remember that as bricks pass by, they can be in any orientation, can be dirty, can even be stuck to other pieces. So having a flexible software system is key to recognizing—in a fraction of a second—what a given brick is, in order to sort it out. When a match is found, a jet of compressed air pops the piece off the conveyer belt and into a waiting bin.

After much experimentation, Mattheij rewrote the software (several times in fact) to accomplish a variety of basic tasks. At its core, the system takes images from a webcam and feeds them to a neural network to do the classification. Of course, the neural net needs to be "trained" by showing it lots of images, and telling it what those images represent. Mattheij's breakthrough was allowing the machine to effectively train itself, with guidance: Running pieces through allows the system to take its own photos, make a guess, and build on that guess. As long as Mattheij corrects the incorrect guesses, he ends up with a decent (and self-reinforcing) corpus of training data. As the machine continues running, it can rack up more training, allowing it to recognize a broad variety of pieces on the fly.

Here's another video, focusing on how the pieces move on conveyer belts (running at slow speed so puny humans can follow). You can also see the air jets in action:

In an email interview, Mattheij told Mental Floss that the system currently sorts LEGO bricks into more than 50 categories. It can also be run in a color-sorting mode to bin the parts across 12 color groups. (Thus at present you'd likely do a two-pass sort on the bricks: once for shape, then a separate pass for color.) He continues to refine the system, with a focus on making its recognition abilities faster. At some point down the line, he plans to make the software portion open source. You're on your own as far as building conveyer belts, bins, and so forth.

Check out Mattheij's writeup in two parts for more information. It starts with an overview of the story, followed up with a deep dive on the software. He's also tweeting about the project (among other things). And if you look around a bit, you'll find bulk LEGO brick auctions online—it's definitely a thing!

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What Happened to Jamie and Aurelia From Love Actually?
May 26, 2017
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Nick Briggs/Comic Relief

Fans of the romantic-comedy Love Actually recently got a bonus reunion in the form of Red Nose Day Actually, a short charity special that gave audiences a peek at where their favorite characters ended up almost 15 years later.

One of the most improbable pairings from the original film was between Jamie (Colin Firth) and Aurelia (Lúcia Moniz), who fell in love despite almost no shared vocabulary. Jamie is English, and Aurelia is Portuguese, and they know just enough of each other’s native tongues for Jamie to propose and Aurelia to accept.

A decade and a half on, they have both improved their knowledge of each other’s languages—if not perfectly, in Jamie’s case. But apparently, their love is much stronger than his grasp on Portuguese grammar, because they’ve got three bilingual kids and another on the way. (And still enjoy having important romantic moments in the car.)

In 2015, Love Actually script editor Emma Freud revealed via Twitter what happened between Karen and Harry (Emma Thompson and Alan Rickman, who passed away last year). Most of the other couples get happy endings in the short—even if Hugh Grant's character hasn't gotten any better at dancing.

[h/t TV Guide]

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