Stock up on short words

"Cwm" is not a typo: Three-letter words you didn't know existed

Need a few tricks up your sleeve for playing Scrabble? It’s not always the long words that will impress the other players: Sometimes it’s the surprisingly short combination of letters that none of them knew. Have you ever heard of unassuming three-letter words like "cwm" or "zax"? Those aren’t typos! Let’s explore some of the most obscure –yet perfectly valid– three-letter words.

Before you ask: it’s pronounced "koom". If you run out of vowels in your Scrabble set, this might save you. It refers to a deep, steep-walled valley, often carved by glaciers.

The term comes from Welsh, where it simply means "valley." Many places in Wales proudly bear the name, such as Cwmbran, a town in South Wales, or Cwmtwrch, a village with a name that translates to "Valley of the Wild Boar."

A "zax" is a tool used for cutting or trimming roof slates with precision. The word shares linguistic roots with seax, an Old English word for a short sword or knife.

Plus, in Scrabble, the mighty "Z" (10 points!) paired with "A" (1 point) and "X" (8 points) makes this one of the highest-scoring three-letter words you can play!

No, it’s not a mythical sea creature. "Voe" refers to a small bay or narrow creek that extends inland from the sea. These sheltered inlets are particularly found in Scotland, where they provided safe harbor for fishermen and sailors for centuries.

Some of these sailors were Vikings who once ruled the territory, and who called these bays with the Old Norse word vágr (bay or inlet.)

If you ever see a rowdy, loudmouthed troublemaker being kicked out of a bar in Britain, you might hear someone call them a "yob."

Here’s the funny part: There’s no Old English etymology involved. It’s just "boy" spelled backwards (a bit of Cockney slang trickery).

A very specific noun, but a valid one. A "pyx" is the container used in churches to hold consecrated bread.

The term comes from Latin pyxis, meaning "small box," which in turn derives from the Greek pyxos, a type of boxwood tree. Those three letters combined would earn you at least 15 points!

Have you ever seen the interior of a rock lined with dazzling, beautiful crystals? You might have been looking at a vug.

It’s a small cavity inside a rock that often exposes these pockets of hidden treasures, like quartz, amethyst, or more exotic gems. The word vug comes from the Cornish language, where vooga meant "cave" or "hollow."

Sure, playing "OK" is useful, but have you tried "Oka"? It’s a type of cheese from Canada, and also a historical unit of weight used in Turkey.

The cheese is named after the village of Oka in Quebec, where Trappist monks started making it in the late 19th century.

Gox might sound like the name of some sci-fi character. But it’s just a short abbreviation to refer to "gaseous oxygen."

"O₂" is the more common way to represent it, but "gox" is sometimes used by those in scientific and industrial contexts.

To be fair, you could pluralize any two-letter word by adding an S. "Xis" (the plural of the 14th Greek letter Ξ ξ) is no exception.

Just so you know, "xi" is not the translation of our "X," as you might think. What we call an "X," the Greek would call a "chi."

"Ait" is mostly used in Britain to describe little landmasses that pop up in waterways, like those dotting the Thames.

The word (sometimes spelled eyot) comes from Old English iegoth, meaning "small island." Though it’s not common in everyday speech, you’ll still find it in place names and historical writings.

Before they fully mature, newts crawl on land: this is when we call them efts. These tiny, bright-colored amphibians can be found around damp forests, looking like pocket-sized dragons.

The word eft has been around for centuries, coming from Old English efeta, which evolved to ewt, and ultimately to newt.

The gnu (pronounced "new" or "guh-noo") is better known as the wildebeest, that sturdy African antelope famous for its dramatic migrations across the Serengeti.

The word gnu comes from the Khoisan languages of southern Africa and was first recorded by European explorers in the 18th century. The alternative name wildebeest is the Dutch word for "wild beast," of course.

"Nix" means to reject, cancel, or put an end to something. The word comes from the German nichts, meaning "nothing."

It entered American English in the 19th century, likely through German immigrants. Over time, it became a snappy, no-nonsense way to say "no."

An "ulu" is a traditional Inuit knife with a characteristic curved blade, perfect for chopping, skinning, or even cutting a child's hair (yes, really).

The name comes from the Inuktitut word ᐅᓗ (ulu), which roughly translates to "woman’s knife"

because it was traditionally used by Inuit women for household and hunting tasks.

The truth about your brain

You won’t believe what happens in your brain while you sleep

Image: Milad Fakurian

Your brain is one of the most powerful and mysterious organs in your body. It controls everything from your thoughts to your emotions and even processes information at lightning speed. But how much do you really know about it? Some long-believed myths about the brain have been debunked, while other surprising facts reveal just how incredible this organ truly is. Get ready to be amazed by these fascinating brain facts!

Image: Natasha Connell

You’ve probably heard this one before, but it’s completely false! While it’s true that not all parts of the brain fire at the same time, imaging studies show that most regions are active throughout the day, even when we sleep.

Your brain is constantly working, controlling bodily functions and emotions, and processing information. So next time someone says you’re only using 10% of your brain, you can confidently tell them that’s just a myth!

Image: Aarón Blanco Tejedor

Here’s a weird fact: While your brain processes pain signals from the rest of your body, it has no pain receptors of its own. This is why surgeons can perform brain surgery on conscious patients without causing them pain.

However, the membranes and tissues surrounding the brain do have pain receptors, which is why headaches and brain injuries can be so excruciating.

Image: Usman Yousaf

How come we have headaches if the brain has no pain receptors? Well, that’s because headaches are triggered by chemical activity in the brain, changes in nerves and blood vessels, and even fluctuating serotonin levels.

In some cases, hormones like estrogen can also play a role, which explains why migraines are more common in women.

Image: Go to Johannes Plenio's profile Johannes Plenio

Dreams are proof that your brain never rests! (Warning: this fact can make you feel exhausted.) While you sleep, your limbic system, that is, the part of the brain that deals with emotions, becomes especially active, which is why dreams often feel so intense.

On average, humans experience four to seven dreams per night, even if we don’t always remember them. And what about that scary nightmare about falling? Well, you can thank your amygdala, the brain’s fear center, for that one.

Image: Brett Jordan

Have you ever walked into a room and instantly forgotten what you were after? That’s because short-term memory only lasts about 20-30 seconds! That’s not enough!

Your brain holds a limited amount of information in its active state before deciding whether to store it or discard it. Ironically, we can’t really choose what makes the cut, but we do hope these facts stay with you!

Image: BUDDHI Kumar SHRESTHA

That sharp, icy pain when you eat something too cold? It’s your brain’s way of telling you to slow down! Officially called sphenopalatine ganglioneuralgia, a brain freeze happens when cold food or drinks rapidly chill the blood vessels in your throat, causing them to constrict and then rapidly expand. This sends pain signals to your brain, warning you of the sudden temperature shift. It’s annoying, but it’s actually your body trying to protect itself!

Image: Josh Riemer

You didn’t need us to tell you, but let’s look at the details: The average person has between 12,000 and 60,000 thoughts per day. What’s even more interesting? 95% of those thoughts are the same ones you had yesterday. Is that not surprising enough? Hear this out: 80% of them tend to be negative. That’s because our brains are wired for survival, constantly analyzing risks and potential dangers.

Image: Terry Vlisidis

Even though it only makes up about 2% of your body weight, your brain employs a major quantity of energy! It consumes 20% of your oxygen and blood supply, making it one of the most demanding organs in your body.

If your brain goes without oxygen for just five minutes, brain cells start dying, leading to irreversible damage. This is why deep breathing and cardiovascular exercise are great for brain health!

Image: Alexander Andrews

Do you know that feeling when you hit the back of your head and see stars? That’s because your occipital lobe, which controls vision, is located at the back of your brain. If you get hit there, your brain momentarily misfires, causing flashes of light.

Interestingly, your brain processes vision on the opposite side; while your right brain controls your left eye, your left brain controls your right eye. It’s one of the many ways the brain operates in a complex way.

Image: Rodion Kutsaiev

Believe it or not, your brain generates between 12 and 25 watts of electricity when you’re awake. If you can’t really grasp how powerful that is, check this out: It’s enough to power a small light bulb! Your brain’s electrical activity is what allows neurons to send signals at speeds of up to 260 miles per hour.

Image: Robina Weermeijer

Your brain may be the fattiest organ in your body, consisting of at least 60% fat! This is why consuming healthy fats, like omega-3s and omega-6s present in fish, for example, is essential for brain health.

Healthy fats stabilize brain cell walls, reduce inflammation, and support cognitive function. So go ahead and enjoy that avocado toast, it’s food for your brain!

Image: Robina Weermeijer

It’s not just your memory that fades over time; the brain itself physically shrinks as one gets older. It continues developing until your late 40s, but after that, it slowly decreases in size.

Now, size doesn’t equal intelligence, so a smaller brain doesn’t necessarily mean a less capable one. Staying mentally active, exercising, and eating brain-boosting foods can help keep it in top shape!

Image: Lisa Yount

We often think of cholesterol as bad, but your brain actually depends on it! In fact, 25% of your body’s cholesterol is stored in your brain, where it helps with learning and memory. However, unlike other organs, the brain can’t absorb cholesterol from the blood, it has to produce its own. So, while too much cholesterol in the body can be harmful, the right amount is vital for brain function. At least you can use that as an excuse to get that burger!