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English spelling has a reputation — and it's earned. A language that absorbed vocabulary from Old Norse, Norman French, Latin, Greek, and dozens of other sources never settled on a clean one-to-one link between letter and sound. The result is a system that keeps silent letters for history's sake, hides double consonants where you least expect them, and sometimes refuses to follow any rule at all. The collection below walks through 100 of the most-misspelled words in English, grouped by the kind of trap they set. Each entry gives you the right spelling, the wrong version people actually write, and a mnemonic or note to lock the correct form into memory. Use it to train for a bee, prep for an exam, or just stop second-guessing yourself in email.
Table of Contents
1. Silent Letters Hiding in Plain Sight (1–20)
Silent letters are fossils. They point back to a time when those consonants and vowels were actually pronounced, and modern spelling preserves them even after the sound has fallen off. That's why they catch writers out so reliably.
1. Pneumonia — Often written "numonia." The hidden "p" traces to the Greek pneumo- (lung, breath). Trick: remember "pneumatic" uses the same silent "p."
2. Psychology — Often written "sychology." The "p" survives from the Greek psyche (soul, mind). Trick: every "psych" word starts with that muted "p."
3. Mnemonic — Often written "nemonic." The silent "m" comes from Mnemosyne, the Greek goddess of memory. Trick: the word for a memory aid is itself annoyingly easy to forget.
4. Rhythm — Often written "rythm" or "rythym." Almost no proper vowels in sight. Trick: "Rhythm Helps Your Two Hips Move."
5. Wednesday — Often written "Wensday." Named for the Norse god Woden. Trick: internally spell it "Wed-NES-day" every time.
6. Handkerchief — Often written "hankerchief." The "d" disappears in speech. Trick: it's a "hand" + "kerchief," a cloth for the hand.
7. Gnaw — Often written "naw." The "gn" is a holdover from Old English, where both letters were actually spoken.
8. Knight — Often written "nite." Middle English speakers pronounced both the "k" and the "gh." Trick: a quiet knight in silent armor.
9. Subtle — Often written "suttle." The "b" hitches a ride from the Latin subtilis. Trick: there's a subtle "b" tucked inside.
10. Conscience — Often written "concience" or "consience." Hides a silent "sc." Trick: "science" sits right there inside your conscience.
11. Mortgage — Often written "morgage." The mute "t" came in from Old French. Trick: the word literally means "death pledge" — the "t" is playing dead.
12. Receipt — Often written "reciept." The silent "p" points back to Latin receptum. Trick: I before P in receipt.
13. Debris — Often written "debree." French origin keeps that voiceless "s." Trick: the French never say the "s."
14. Raspberry — Often written "rasberry." The "p" is typically silent in speech. Trick: picture a shy "p" berry hiding in the basket.
15. Rendezvous — Often written "rendevous" or "randezvous." French spelling runs the show. Trick: the tail is "vous," French for "you."
16. Phlegm — Often written "flem." Greek origin with a silent "g." Trick: the "g" is stuck in there, just like phlegm itself.
17. Pneumonoultramicroscopicsilicovolcanoconiosis — The longest entry in major dictionaries, naming a lung disease. Trick: break it down — pneumono + ultra + microscopic + silico + volcano + coniosis.
18. Aisle — Often written "isle" or "iale." The "s" goes unheard. Trick: A-I-S-L-E, the passage between rows.
19. Corps — Often written "core." The "ps" is silent (French rules again). Trick: soldiers silent at attention.
20. Gnarly — Often written "narly." Silent "g" inherited from Old English. Trick: the "g" is as twisted up as anything gnarly.
2. When to Double (and When Not To) (21–40)
Choosing whether a consonant doubles is one of the biggest landmines in English writing. These entries get flagged in spellchecks constantly because the rules aren't consistent from word to word.
21. Accommodate — Often written "accomodate" or "acommodate." Two c's and two m's. Trick: the word is roomy enough to hold both pairs.
22. Occurrence — Often written "occurence" or "ocurrence." Two c's, two r's, single "e" on the end. Trick: two doubles, no more.
23. Millennium — Often written "millenium" or "milennium." Two l's plus two n's. Trick: two l's for two thousand years, two n's for the two millennia on either side of the turn.
24. Embarrass — Often written "embarass" or "embarras." Two r's, two s's. Trick: "I feel Really Red and Silly."
25. Committee — Often written "commitee" or "comittee." Two m's, two t's, two e's. Trick: a triple-double deal.
26. Misspell — Often written "mispell." The word for spelling wrongly is famously misspelled. Trick: it's miss + spell, two s's back to back.
27. Dumbbell — Often written "dumbell." Two b's because it's "dumb" + "bell." Trick: the compound keeps both halves intact.
28. Necessary — Often written "neccessary" or "necessery." One c, two s's. Trick: a shirt with a single collar and two sleeves.
29. Broccoli — Often written "brocolli" or "brocoli." Two c's, one l. Trick: crunchy two c's, lean single l.
30. Possess — Often written "posess." Four s's in all. Trick: the esses completely take over the word.
31. Accidentally — Often written "accidently." It's accident + ally, not accident + ly. Trick: you need an ally after an accident.
32. Cappuccino — Often written "capuccino" or "cappucino." Two p's and two c's. Trick: it's a double-shot of doubles.
33. Disappoint — Often written "dissapoint." One s, two p's. Trick: it's dis + appoint.
34. Harass — Often written "harrass." One r, two s's. Trick: one r keeps it from feeling harsher.
35. Parallel — Often written "parrallel" or "paralell." Two l's side by side. Trick: the twin l's are the parallel lines.
36. Questionnaire — Often written "questionaire." Two n's required. Trick: twice the n, twice the information gathered.
37. Recommend — Often written "recomend" or "reccommend." One c, two m's. Trick: I recommend one c and two m's.
38. Mediterranean — Often written "Mediteranean." One d, one t, two r's. Trick: the sea in the middle of terra — watch that second r.
39. Dilemma — Often written "dilemna." Two m's, no n anywhere. Trick: Emma is stuck in a dilemma.
40. Desiccate — Often written "dessicate" or "desicate." One s, two c's. Trick: one s of sand, two c's of cracked clay.
3. Vowels That Refuse to Behave (41–60)
English vowels are the wild card of spelling. The sound you hear often has little connection to the letters on the page, and these words show exactly how messy that gap can get.
41. Receive — Often written "recieve." Classic "i before e except after c." Trick: this is one case where the old rhyme delivers.
42. Separate — Often written "seperate." The middle vowel is "a," not "e." Trick: there's "a rat" hiding in separate.
43. Definitely — Often written "definately" or "definatly." Root: "finite." Trick: de-FINITE-ly, not "definately."
44. Privilege — Often written "privelege" or "priviledge." No "d," and the middle vowel is "i." Trick: it's a privilege to host two i's.
45. Miniature — Often written "minature." The "ia" in the middle goes quiet in speech. Trick: say Mini-A-ture in your head when spelling.
46. Maintenance — Often written "maintainance." The ending is "-enance," not "-ainance." Trick: maintain becomes maintenance — "ain" contracts to "en."
47. Liaison — Often written "liason." The "iai" sequence is inherited from French. Trick: L-I-A-I-S-O-N with the twin i's.
48. Manoeuvre — Often written "manouvre" or the American "manuever." The "oeu" cluster is unusual. Trick: the spelling is itself a manoeuvre.
49. Bureaucracy — Often written "beaurocracy" or "burocracy." The "eau" is straight from French bureau. Trick: bureau + cracy.
50. Gauge — Often written "guage." The "au" comes before the "g." Trick: think G-A-U, then G-E.
51. Amateur — Often written "amature." French origins preserve the "eur" tail. Trick: amateurs still have "a" lot to learn.
52. Peculiar — Often written "pecuilar." Trick: Pecul-I-ar — the "i" slots in before "ar."
53. Deteriorate — Often written "deteriate." Five syllables, not four. Trick: de-te-ri-or-ate — voice every piece.
54. Mischievous — Often written "mischievious." Three syllables, not four. Trick: MIS-chie-vous, no extra "-i-" in there.
55. Entrepreneur — Often written "entrepeneur." French throughout. Trick: entre + pre + neur, with "pre" sitting in the middle.
56. Onomatopoeia — Often written "onomatapoeia." Trick: O-no-mat-o-poeia — vowels and consonants strictly alternate.
57. Hemorrhage — Often written "hemmorage" or "hemorrage." Trick: hem + or + rhage, with the Greek "rrh" intact.
58. Diarrhea — Often written "diarea" or "diarrhoea." Trick: D-I-A-R-R-H-E-A stands for "Dash In A Real Rush, Hurry, Every Afternoon."
59. Pharaoh — Often written "pharoah" or "pharoh." Trick: Phar-A-oh — the "a" lands before the "oh."
60. Acquaintance — Often written "aquaintance." The "cq" pairing is uncommon. Trick: you ACQuire an ACQuaintance.
4. Words That Kept Foreign Spelling Rules (61–80)
English has imported vocabulary from hundreds of other languages, and it often keeps the original spelling intact — even when that spelling follows rules that look entirely alien.
61. Bourgeois — Often written "bourgois." French origin. Trick: Bour-GE-ois, with the "e" slotting in before "ois."
62. Hors d'oeuvres — Spelled a dozen wrong ways in the wild. Trick: think "horse + doo + vres," or just write "appetizers" instead.
63. Chauffeur — Often written "chaffeur" or "chauffer." Trick: Chau + FFEUR — double f, French "eur" ending.
64. Colonel — Often written "kernal." Spelled via Italian, sounded via French. Trick: the colonel carries a "colon" — just memorize it.
65. Connoisseur — Often written "connoiseur" or "conoisseur." Trick: two n's and two s's — a connoisseur insists on pairs.
66. Conscientious — Often written "concientious." Trick: Con-SCI-en-tious — "science" is embedded.
67. Surveillance — Often written "surveilance." Trick: sur-VEIL-lance — a veil needs two l's to drape.
68. Sacrilegious — Often written "sacreligious." Despite sounding linked to "religious," it comes from Latin sacrilegium. Trick: sacri + LEG + ious, not sacri + REL + igious.
69. Fuchsia — Often written "fuschia." Named after the botanist Leonhart Fuchs. Trick: FU + CH + SIA — "ch" before "s."
70. Nauseous — Often written "nausious." Trick: Nau-SE-ous — imagine a choppy "sea" making you nauseous.
71. Playwright — Often written "playwrite." A "wright" is a craftsman (wheelwright, shipwright). Trick: a playwright builds plays, like a wright builds anything else.
72. Exaggerate — Often written "exagerate." Two g's. Trick: exaggerations always go double — so do the g's.
73. Inoculate — Often written "innoculate." One n, one c. Trick: INoculate, single N.
74. Supersede — Often written "supercede." The only "-sede" word in English; the rest are "-cede" or "-ceed." Trick: super-SEDE is a loner.
75. Idiosyncrasy — Often written "idiosyncracy." Ends in "-asy," not "-acy." Trick: idio-SYN-cra-sy, never "cracy."
76. Hierarchy — Often written "heirarchy." Opens with "hier-," not "heir-." Trick: say "hi" to whoever sits at the top of the hierarchy.
77. Vacuum — Often written "vacum" or "vaccuum." One c, two u's. Trick: a vacuum hoovers up one c and pairs of u's.
78. Caribbean — Often written "Carribean." One r, two b's. Trick: single r for the car, double b for the beach.
79. Camouflage — Often written "camoflage." Trick: CAM + OU + FLAGE — the "ou" is blending in.
80. Phlegmatic — Often written "flegmatic." Greek "ph" start. Trick: same root as phlegm, which keeps its "ph" too.
5. Look-Alikes and Oddballs (81–100)
This final stretch collects words that sound like other words, stack unexpected letter groups, or simply ignore whatever rule you thought you'd learned. Keep this list close for anything you're about to commit to paper.
81. Stationery/Stationary — Stationery is paper goods; stationary means unmoving. Trick: stationERY contains papER; stationARY implies stAying put.
82. Complement/Compliment — Complement completes; compliment is a kind word. Trick: complEment complEtes; complIment says "I like."
83. Principal/Principle — Principal is the top person or the main thing; principle is a rule. Trick: the principal is your PAL; a principle is a ruLE.
84. Occasion — Often written "occassion." Two c's, one s. Trick: O + CC + A + S + ION — double c, single s.
85. Ignorance — Often written "ignorence." Ending in "-ance." Trick: ignorANCE — tiny ANTs are ignorant of the bigger picture.
86. Fiery — Often written "firey." The "e" hops to a new spot. Trick: FI + ER + Y — the "e" leaps over the "r."
87. Twelfth — Often written "twelth." The "f" is there even if you barely hear it. Trick: say twelF-TH in your head while writing.
88. Jewelry — Often written "jewellery" (British) or "jewelry" (American). Both are right — use the spelling that fits your dialect.
89. Judgement/Judgment — Both forms are valid. "Judgment" wins in American English and legal contexts; "judgement" is common in British writing.
90. Perseverance — Often written "perserverance." Trick: Per + SEVER + ance — persevering through severe weather.
91. Cemetery — Often written "cemetary." All three vowels are "e." Trick: three e's at rest in the cEmEtEry.
92. Fluorescent — Often written "flourescent." Trick: FLUOR + escent, from the element fluorine — no "flour" involved.
93. Successful — Often written "succesful." Two c's, two s's, one l. Trick: it's literally success + ful.
94. Immediately — Often written "immediatly." Trick: Im + MEDI + ate + ly — voice every chunk.
95. Indispensable — Often written "indispensible." Ends in "-able." Trick: you are ABLE to treat it as indispensable.
96. Conscientious — Often written "conscienscious." Trick: Consci + ENTI + ous — think "enti" in the middle.
97. Acknowledgment — Often written "acknowledgement." Both work; American usage drops the middle "e" before "-ment."
98. Minuscule — Often written "miniscule." Root: Latin minus, not "mini." Trick: it's MINUS-cule, never MINI-scule.
99. Irresistible — Often written "irresistable." Ending: "-ible." Trick: it's not ABLE to be resisted — but the suffix is still "-IBLE."
100. Pronunciation — Often written "pronounciation." Despite coming from "pronounce," the noun trims the "ou." Trick: Pro + NUN + ci + ation — a NUN teaches pronunciation.
These hundred words carry a lot of history in their awkward letter choices. Waves of conquest, scholarly tinkering with Latin roots, and centuries of loans from French, Greek, Dutch, Italian, and beyond all left fingerprints on the page. If you want to beat the trickier spellings, a few habits help more than any rule: read widely so the correct forms burn into memory, look up anything that even slightly wobbles, build your own mnemonics, and write by hand occasionally to feel the letters. English spelling will never be fully logical — but you can get very, very close to never getting it wrong.
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