Learning English involves mastering vocabulary, spelling, and usage. For many learners, writing words correctly can be challenging, especially when dealing with homophones, silent letters, or irregular spellings. Below is a carefully selected list of 70 English words along with their correct spellings, common mistakes, and tips to remember them.

1-10: Common Words with Tricky Spellings

1. Accommodate → Accommodate (Two "m"s and two "c"s)
2. Acheive → Achieve ("i" before "e" except after "c")
3. Arguement → Argument (No "e" after "u")
4. Believe → Believe (Follows "i before e")
5. Buisness → Business (Think "busy-ness")
6. Calender → Calendar (Ends with "-ar")
7. Definately → Definitely (Root: "finite")
8. Dilemna → Dilemma (Double "m")
9. Embarras → Embarrass (Two "r"s and two "s"s)
10. Febuary → February (Pronounced "Feb-roo-ary")

11-20: Words with Silent Letters

11. Knight (Silent "k")
12. Psychology (Silent "p")
13. Debt (Silent "b")
14. Island (Silent "s")
15. Wednesday (Silent "d")
16. Honest (Silent "h")
17. Muscle (Silent "c")
18. Scissors (Silent "c")
19. Thumb (Silent "b")
20. Wrist → Wrist (Silent "w")

21-30: Homophones (Sound-Alike Words)

21. Affect (verb) vs. Effect (noun)
22. Their (possession) vs. There (place) vs. They’re (contraction)
23. Your (possession) vs. You’re (contraction)
24. Its (possession) vs. It’s (contraction)
25. Stationary (not moving) vs. Stationery (writing materials)
26. Compliment (praise) vs. Complement (complete)
27. Principal (school head) vs. Principle (rule)
28. Desert (dry land) vs. Dessert (sweet food)
29. Break (to separate) vs. Brake (stopping device)
30. Peace (calm) vs. Piece (part)

31-40: Frequently Misspelled Long Words

31. Conscientious (Often missing the second "c")
32. Exhilarate (Not "exhilerate")
33. Maintenance (Not "maintainance")
34. Mischievous (Not "mischievious")
35. Occasion (Double "c," single "s")
36. Pneumonia (Silent "p")
37. Queue (Four silent letters)
38. Restaurant (Not "restaraunt")
39. Separate → Separate (Think "par" in the middle)
40. Unnecessary (Double "n," double "s")

41-50: Words with Double Letters

41. Committee (Double "m," double "t," double "e")
42. Occurrence (Double "c," double "r")
43. Success (Double "c," double "s")
44. Address (Double "d")
45. Recommend (Double "m")
46. Tomorrow (Double "m")
47. Apparent (Double "p")
48. Embarrass (Double "r," double "s")
49. Misspell (Double "s," double "l")
50. Accommodate (Double "c," double "m")

51-60: Words Borrowed from Other Languages

51. Bureau (French origin)
52. Fiancé/Fiancée (French, note gender endings)
53. Schadenfreude (German)
54. Rendezvous (French)
55. Café (French, often anglicized as "cafe")
56. Cliché (French)
57. Kindergarten (German)
58. Tsunami (Japanese)
59. Hors d'oeuvre (French)
60. Chauffeur (French)

61-70: Words Often Confused in Writing

61. Accept (to receive) vs. Except (excluding)
62. Advice (noun) vs. Advise (verb)
63. Lose (to misplace) vs. Loose → Loose (not tight)
64. Than (comparison) vs. Then (time)
65. Weather (climate) vs. Whether (choice)
66. Allusion (indirect reference) vs. Illusion (false idea)
67. Elicit (draw out) vs. Illicit (illegal)
68. Capital (city/money) vs. Capitol (government building)
69. Farther (physical distance) vs. Further (metaphorical)
70. Peak (top) vs. Peek (glance) vs. Pique (interest/annoyance)

Tips to Improve Spelling

• Break words into syllables (e.g., "ac-com-mo-date").
• Use mnemonics (e.g., "Big Elephants Can Always Understand Small Elephants" for because).
• Read extensively to see words in context.
• Practice writing without autocorrect.

English spelling can be unpredictable, but with consistent effort, anyone can master it. Keeping a personal list of troublesome words and reviewing them regularly will help reinforce correct usage. Whether you're a student, professional, or language enthusiast, paying attention to these details will enhance your written communication.