54 Cool Words to Liven Up Your Vocabulary

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English is a pretty interesting and complicated language . It consists of plenty of words that look like they should rhyme but don’t, some that are spelled the same but pronounced differently, and others that aren’t pronounced at all like they’re written. And with about 170,000 words in current use, these oddities aren’t exactly easy to pin down. But within all of that confusion are some pretty cool words that are worth knowing. So keep reading, because we’re eager to introduce you to a few new words (and their definitions) that won’t only help you feel smarter but sound smarter, too.

RELATED: The 60 Most Beautiful Words in the English Language—And How to Use Them .

What Is a Cool Word?

Dubbing something “cool” is somewhat of a subjective choice, but there are a few pieces of criteria that we can use to make the determination. Words that possess unique or interesting definitions are often considered cool. Others that are spelled in ways you may not expect fall under this umbrella, as well. It’s also pretty cool for words to contain lots of vowels or letters that aren’t frequently used, like j, q, or z. And finally, if a word sounds cool, with sharp, loud, or long sounds, it probably is cool.

Cool Words With Deep Meanings

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1. Doublespeak

Pronunciation : DUH-buhl-speek Part of speech : Noun Meaning : Intentionally saying one thing that might mean something else.

“We need real answers from him, not just condescending doublespeak.”

2. Eidetic

Pronunciation : eye-DET-ik Part of speech : Adjective Meaning : A description of visual input that’s reproducible with detail and accuracy.

“She possessed an eidetic memory, recalling every detail of the painting even after just a glance.”

3. Eschew

Pronunciation : uh-SHOO Part of speech : Verb Meaning : To deliberately avoid using something or to abstain from it.

“After committing to a minimalist lifestyle, she chose to eschew all unnecessary possessions and focus on experiences instead.”

4. Facetious

Pronunciation : fuh-SEE-shuhs Part of speech : Adjective Meaning : Not serious; like sarcasm, but not always with an obvious tonal difference.

“Even in serious situations, he couldn’t resist making facetious remarks.”

5. Infatuation

Pronunciation : in-fa-choo-AY-shn Part of speech : Noun Meaning : A really strong desire to be close to someone, mostly romantically.

“They had developed a rather intense infatuation with one another.”

6. Metamorphosis

Pronunciation : met-uh-MOR-fuh-sis Part of speech : Noun Meaning : A change of the form or nature of a thing or person into a completely different one.

“The caterpillar undergoes a remarkable metamorphosis, transforming into a beautiful butterfly with vibrant wings.”

Cool-Sounding Words for Usernames

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7. Bluster

Pronunciation : BLUH-stuhr Part of speech : Noun Meaning : Loud, aggressive, or indignant speech that has little effect.

“Despite his bluster, his arguments lacked substance and failed to convince anyone in the room.”

8. Dastardly

Pronunciation : DAS-terd-lee. Part of speech : Adjective Meaning : Cowardly and sneaky or underhanded.

“The villain hatched a dastardly plan to take over the city and spread chaos among its inhabitants.”

9. Luminary

Pronunciation : LOO-muh-nair-ee Part of speech : Noun Meaning : A person who inspires or influences others, especially one prominent in a particular sphere.

“He is known as a real luminary in the field, which should appeal to attendees eager to learn from the best.”

10. Mellifluous

Pronunciation : muh-LI-floo-us Part of speech : Adjective Meaning : (Of a voice or words) sweet or musical; pleasant to hear.

“The audience was instantly captivated by the singer’s mellifluous voice.”

11. Nimbus

Pronunciation : NIM-buhs Part of speech : Noun Meaning : A luminous cloud or a halo surrounding a supernatural being or a saint.

“As the storm approached, a nimbus cloud formed overhead, signaling the impending rainfall.”

12. Orbis

Pronunciation : OR-bis Part of speech : Noun Meaning : Circle; world. Represents wholeness and completion.

“The ancient map depicted an orbis, illustrating the limited understanding of the world at that time.”

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Cool Short Words

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13. Cox

Pronunciation : kaaks Part of speech : Noun Meaning : A person who steers a boat.

“My friend is a cox for the rowing team, always motivating the rowers during their races.”

14. Fop

Pronunciation : fap Part of speech : Noun Meaning : A man who is excessively vain and concerned about his dress and appearance.

“Dressed in extravagant and flashy attire, he looked like a real fop amidst the casually dressed crowd.”

15. Ink

Pronunciation : inc Part of speech : Noun Meaning : A colored fluid or paste used for writing, drawing, printing, or duplicating.

“She wanted to continue writing, but her pen ran out of ink.”

16. Pun

Pronunciation : puhn Part of speech : Noun Meaning : A type of wordplay that exploits different meanings of a term or similar-sounding words for a humorous or rhetorical effect.

“The comedian couldn’t resist inserting a clever pun into every joke.”

17. Qua

Pronunciation : kwah Part of speech : Conjunction Meaning : In the capacity of; as being.

“He approached the project qua team effort, emphasizing collaboration and shared responsibility among all members.”

18. Vex

Pronunciation : veks Part of speech : Verb Meaning : Make someone feel annoyed, frustrated, or worried.

“His constant complaints and negative attitude never failed to vex his colleagues, making it a tense place to work.”

Cool 4-Letter Words

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19. Coif

Pronunciation : kwahf Part of speech : Noun Meaning : A woman’s close-fitting cap, usually worn under a veil by nuns. “The nun carefully adjusted her coif before joining her fellow sisters for a moment of prayer.”

20. Grok

Pronunciation : grak Part of speech : Verb Meaning : Understand something intuitively or by empathy.

“After attending the workshop, he began to truly grok the intricacies of the new software.”

21. Quip

Pronunciation : kwip Part of speech : Noun Meaning : A witty remark or comment.

“During the meeting, he couldn’t resist making a witty quip to lighten the mood.”

22. Spes

Pronunciation : spez Part of speech : Noun Meaning : Hope; A powerful word symbolizing optimism and expectation.

“Even in challenging times, she clung to the spes that tomorrow would bring better opportunities and brighter moments.”

23. Swag

Pronunciation : swag Part of speech : Noun Meaning : Style or confidence

“She strutted into the room with confidence, her stylish outfit and bold accessories exuding a sense of swag that caught everyone’s attention.”

24. Yeet

Pronunciation : yeet Part of speech : Interjection Meaning : An expression of excitement.

“If we’re lucky, all of Wisconsin will be yelling “Yeet!” when the Packers win the Super Bowl this year.”

RELATED: The 13 Longest Words in the English Language .

Fun Words With Cool Meanings

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25. Bibliotherapy

Pronunciation : bib-lee-uh-THAIR-uh-pee Part of speech : Noun Meaning : The use of books as therapy in the treatment of mental conditions.

“She turned to bibliotherapy during a difficult time, finding solace and inspiration in the pages.”

26. Cacophony

Pronunciation : kuh-KAH-fuh-nee Part of speech : Noun Meaning : A harsh, discordant mixture of sounds.

“The marketplace was filled with a cacophony of sounds; vendors shouting, horns honking, and people bargaining.”

27. Juxtaposition

Pronunciation : juhk-stuh-puh-ZISH-uhn Part of speech : Noun Meaning : The act or an instance of placing two or more things side by side.

“The serene park was a welcome juxtaposition to the bustling cityscape surrounding it.”

28. Portmanteau

Pronunciation : port-MAN-tow Part of speech : Noun Meaning : A combination of two or more words or word parts

“She coined the term ‘brunch’ as a portmanteau of breakfast and lunch, describing the delightful mid-morning meal.”

29. Tintinnabulation

Pronunciation : tin-tuh-nab-yuh-LAY-shun Part of speech : Noun Meaning : The ringing or sound of bells.

“As the wind rustled through the trees, a delicate tintinnabulation of wind chimes echoed in the garden”

30. Zeitgeist

Pronunciation : ZYTE-gyst Part of speech : Noun Meaning : The defining spirit or mood of a particular period of history as shown by the ideas and beliefs of the time.

“The music and fashion choices of people around us often reflect the current zeitgeist.”

Cool English Words That Will Make You Laugh

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31. Argle-bargle

Pronunciation : AR-guhl-BAR-guhl Part of speech : Noun Meaning : Meaningless chatter or written words.

“The instructions for setting up my dishwasher are 48 pages of argle-bargle.”

32. Bafflegab

Pronunciation : BAF-uhl-gab Part of speech : Noun Meaning : Confusing or generally unintelligible jargon.

“I asked the solicitor about the current prices, but all I got was more bagglegab about deferred payments and options to cancel.”

33. Lollygag

Pronunciation : LAH-lee-gag Part of speech : Verb Meaning : Spend time aimlessly; dawdle or dally.

“Instead of completing his chores, he chose to lollygag around in the backyard”

34. Nincompoop

Pronunciation : NIN-kuhm-poop Part of speech : Noun Meaning : A silly or foolish person.

“He forgot his keys for the third time this week; what a nincompoop!”

35. Quibble

Pronunciation : KWI-bil Part of speech : Verb Meaning : To complain or fixate on a trivial or small detail to avoid the main point of an argument.

“There were constantly quibbling during the negotiation, causing the process to take much longer than necessary.”

36. Whippersnapper

Pronunciation : WIP-er-snapper Part of speech : Noun Meaning : A young and inexperienced person considered to be presumptuous or overconfident.

“The professor endearingly referred to his assistant as a young whippersnapper, acknowledging the enthusiasm of the new recruit.”

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Beautiful Words With Cool Meanings

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37. Chiaroscuro

Pronunciation : kee-aa-ruh-SKYUR-ow Part of speech : Noun Meaning : The treatment of light and shade in drawing and painting.

“ The artist used chiaroscuro to create a dramatic effect in the painting, playing with light and shadow to highlight certain features.”

38. Mellifluous

Pronunciation : muh-LIF-loo-us Part of speech : Adjective Meaning : Sweet or musical; pleasant to hear.

“The music was so mellifluous, everyone instantly relaxed upon entering the room.”

39. Numinous

Pronunciation : NOO-muh-nuhs Part of speech : Adjective Meaning : Having a strong religious or spiritual quality; indicating or suggesting the presence of a divinity.

“The old temple contained a numinous aura that filled worshippers with a sense of awe and reverence.”

40. Sanguine

Pronunciation : SAN-gwin Part of speech : Adjective Meaning : Optimistic and positive.

“Despite the challenges, she remained sanguine about the future, believing that things would eventually improve.”

41. Wanderlust

Pronunciation : WOHN-der-luhst Part of speech : Noun Meaning : A strong desire to travel.

“She couldn’t stay in one place for long; her wanderlust always had her dreaming about going to new and exciting destinations.”

42. Zephyrous

Pronunciation : ZEF-uh-rus Part of speech : Adjective Meaning : Encapsulating the essence of a gentle breeze.

“The picnic was made much more enjoyable by the zephyrous weather.”

Cool Unique Words

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43. Apricity

Pronunciation : a-PRIS-i-tee Part of speech : Noun Meaning : The warm rays of sun in the winter.

“Despite the cold air, the squirrels were enjoying the apricity while perched upon a branch.”

44. Clinomania

Pronunciation : kli-NO-may-nee-uh Part of speech : Noun Meaning : An obsessive desire to stay in bed. “Her constant desire to linger in bed showcased a mild case of clinomania, making it challenging for her to arrive at work on time.”

45. Erinaceous

Pronunciation : er-uh-NEY-shuhs Part of speech : Adjective Meaning : Something (or someone) that looks like a hedgehog. “The garden became a haven for erinaceous creatures who had found refuge among the bushes.”

46. Gizmo

Pronunciation : GIZ-moe Part of speech : Noun Meaning : A word to describe a small device or gadget whose name is unknown.

“He proudly displayed his collection of gizmos and gadgets.”

47. Syzygy

Pronunciation : SI-zuh-jee Part of speech : Noun Meaning : An alignment of three celestial bodies.

“The syzygy of the sun, moon, and Earth during a solar eclipse is truly spectacular.”

48. Yestereve

Pronunciation : YES-ter-eve Part of speech : Noun Meaning : Last night.

“She was desperate for my attention, even though I had just seen her yestereve.”

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Cool Words for Names

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49. Aurora

Pronunciation : uh-RAW-ruh Part of speech : Noun Meaning : A natural electrical phenomenon characterized by the appearance of streamers of reddish or greenish light in the sky.

“The aurora painted the sky with colorful lights, leaving everyone staring in awe.”

50. Bliss

Pronunciation : blis Part of speech : Noun Meaning : Perfect happiness; great joy.

“It had been a difficult few years, but he finally felt a sense of a total and complete bliss.”

51. Euphoria

Pronunciation : yoo-FORE-ee-uh Part of speech : Noun Meaning : An intense feeling of elation, excitement, or pleasure.

“He was still in a state of euphoria, even hours after winning the championship.”

52. Eudaemonia

Pronunciation : eu·​dai·​MO·​nia Part of speech : Noun Meaning : The state of being lucky.

“Between his successful career and loving relationship, John was left feeling a strong sense of eudaimonia.”

53. Halcyon

Pronunciation : HAL-see-uhn Part of speech : Adjective Meaning : Calm, peaceful, and tranquil.

“Investors miss the the halcyon days of the mid-1980s, when profits were soaring.”

54. Maverick

Pronunciation : MAV-er-ik Part of speech : Noun Meaning : Independent or nonconformist.

“Known for his maverick approach to business, he often challenged more conventional strategies.”

Wrapping Up