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15 Hardest Words to Spell in English (and What They Mean)

by Edwin CañasMonday, April 14 2025

You know that awkward pause when you're typing one of the hardest words to spell in English, and suddenly spellcheck freaks out?

We've all been there—struggling with those sneaky English words that defy logic, break every spelling rule, or just look plain wrong. 

So, in this article, we’re diving into 15 of the trickiest words to spell in English—what they mean, and how to never misspell them again.

Let’s check them out!

How Spelling Could Affect Communication?

English spelling can be notoriously tricky due to its irregular rules, silent letters, and the heavy influence of other languages such as Latin, Greek, and French. 

Words like colonel and pharaoh defy phonetic logic, while others include silent letters that trip up even native speakers. 

These inconsistencies often make English one of the most challenging languages to spell correctly. 

You can explore more interesting examples of adjectives to see how spelling variations appear.

Spelling errors can also have real-world consequences. 

A misspelled word might cause a chuckle in casual conversation, but in professional or academic settings, it can lead to miscommunication, misinterpretation, and damage to your credibility. 

Imagine writing an important email and misspelling a key term—it might undermine your message entirely. 

Practicing with tongue twisters or challenging spelling lists can sharpen your skills and improve your confidence in using English clearly and effectively.

15 Hardest Words to Spell in English

Now that we understand why English spelling can feel like a minefield, let’s explore the actual culprits—the words that consistently stump students, professionals, and even native speakers. 

Below are 15 of the hardest words to spell in English, complete with their meanings and examples of how they work in a sentence:

1. Accommodate

It means to provide lodging or sufficient space for something or someone, and of course, makes a growing to-do list. 

It’s that word you type with hesitation, second-guessing every letter. Does it have one “c” or two? One “m” or double trouble? 

ExampleThe hotel can accommodate up to 300 guests–so bring your whole extended family if you like!

2. Acquaintances

They’re the friendly faces you nod at during weddings and reunions, not quite friends, but more than strangers.

The word trips us up with that sneaky “c” and the oddly charming “-quaint-” in the middle.

ExampleI ran into a few old acquaintances at the reunion, but didn’t stay long.

3. Chiaroscurist

This one belongs in an art gallery—and maybe a spelling bee. It refers to an artist who plays with shadows and light to paint with depth. 

Straight from Italian, its look and sound are a full-on masterpiece of confusion.

Example: As a chiaroscurist, she masterfully brought her portraits to life with dramatic lighting.

4. Conscience

It’s your inner moral compass—that little voice whispering what’s right and wrong.

Often confused with “conscious,” this word’s irregular spelling adds another layer of guilt when you get it wrong.

ExampleHer conscience wouldn’t let her walk away without speaking the truth.

5. Handkerchief

A square piece of cloth used for wiping the face or nose is called a handkerchief. The silent “d” is often overlooked in spelling.

ExampleHe offered her a handkerchief when she started crying.

6. Mischievous

This word has a playful grin—it means causing harmless trouble most delightfully. 

Many people mistakenly pronounce it as “mischievious,” adding an extra syllable that doesn’t exist.

ExampleThe mischievous kitten knocked over the flowerpot and then ran off like nothing happened.

7. Misspell

This word means to spell a word incorrectly. Ironically, many people misspell “misspell” by omitting one “s.”

ExampleHe managed to misspell “dictionary” in his spelling test–oh so ironically!

8. Nauseous

It describes that queasy feeling, when you feel like you’re going to vomit—but it’s often mixed up with “nauseated.” 

Add the weird “-eous” ending, and you’ve got a word that’s hard to stomach.

Example“The smell of rotten eggs made me feel nauseous.”

9. Pharaoh

This majestic title for Egyptian rulers has a royal level of spelling confusion. 

This word can be tricky because the unusual combination of letters makes it counterintuitive.

ExampleThe tomb of the pharaoh was filled with ancient treasures.

10. Pronunciation

It’s how you say a word—and it’s not spelled like “pronounce.”  That missing “noun” part throws off even the best of us.

ExampleHer pronunciation of French words was excellent.

11. Queue

Just five letters to say... “cue.” It’s a word with a flair for unnecessary elegance, especially when you’re stuck in a long line.

ExampleWe waited in a never-ending queue outside the bakery, dreaming of croissants.

12. Receipt

It’s a tiny piece of paper that proves your transaction—yet its silent “p” always manages to disappear from memory.

Example: Don’t forget to keep your receipt for the refund.

13. Rhythm

A strong, regular repeated pattern of movement or sound is called rhythm. This word lacks standard vowels, making it hard to predict the spelling. 

ExampleThe drummer’s rhythm was so perfect, you could feel it in your bones.

14. Twelfth

Try saying it slowly: “Twelfth.” It’s the ordinal form of the number twelve. The “f” and “th” sounds are awkward to spell and say.

ExampleHis birthday is on the twelfth of July.

15. Worcestershire

It’s a county in England and also a type of fermented sauce used to enhance flavor in cooking.

The spelling and pronunciation don’t match up. It's often pronounced “WUSS-ter-sheer” or “WUSS-ter-shire,” leaving learners confused.

ExampleHe added a splash of Worcestershire sauce to the stew for an extra kick.

Conclusion

Think you can spell them all? Share this list with your friends and challenge them. Happy spelling!

Interested in other topics? Check out EZClass and the EZClass blog for more informative articles, and don't forget to share this article with your friends who are learning English!


 

Edwin Cañas

Edwin Cañas

Founder of EZClass

Edwin Cañas is an expert in e-learning, leadership, and educational technology. As COREnglish’s Director of Operations and founder of EZClass, he strives to make learning more engaging and accessible. He also co-authored the "How to Master Grammar for Beginners (Spanish Edition)" book to help Spanish learners master English with ease.

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