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Top 100 Most Common Abbreviations and Acronyms

Saturday, July 11, 2026

A past Centumth puzzle. Play it on this page with five guesses, or read the full Top 100 ranking below.

We use them every day to save time typing and talking! For this list, guess the most widely used acronyms and abbreviations in the English language (like 'NASA', 'ASAP', or 'DIY'). To make it easy, you can type either the short abbreviation itself OR the full spelled-out phrase, and both will be accepted as correct!

This list was researched and ranked by hand for Centumth. Entries near #1 are the names almost everyone thinks of first. Entries near #100 are true, a little obscure, and still fair if you think sideways. Sources below are the starting point — the final order can include small editorial calls so the daily puzzle stays balanced.

You can play this archive puzzle with five guesses, or reveal the complete ranking if you came here looking for the list. Revealing locks this puzzle — you won’t be able to play it afterward.

Sources

Outbound sources help you verify the ranking. The published order is Centumth’s.

The full Top 100

  1. #1ASAP
  2. #2RSVP
  3. #3DIY
  4. #4VIP
  5. #5FAQ
  6. #6FYI
  7. #7AKA
  8. #8ETA
  9. #9TBA
  10. #10TBD
  11. #11PS
  12. #12VS
  13. #13LOL
  14. #14OMG
  15. #15BRB
  16. #16IDK
  17. #17BTW
  18. #18FBI
  19. #19CIA
  20. #20NASA
  21. #21USA
  22. #22UK
  23. #23UN
  24. #24WHO
  25. #25EU
  26. #26CEO
  27. #27HR
  28. #28PR
  29. #29HQ
  30. #30IT
  31. #31PC
  32. #32TV
  33. #33AI
  34. #34Wi-Fi
  35. #35GPS
  36. #36USB
  37. #37PDF
  38. #38CD
  39. #39DVD
  40. #40SMS
  41. #41SOS
  42. #42AM
  43. #43PM
  44. #44ID
  45. #45ATM
  46. #46PIN
  47. #47UFO
  48. #48SUV
  49. #49RIP
  50. #50DNA
  51. #51CPR
  52. #52ER
  53. #53ICU
  54. #54MRI
  55. #55MD
  56. #56RN
  57. #57IQ
  58. #58EQ
  59. #59HTTP
  60. #60URL
  61. #61HTML
  62. #62GIF
  63. #63App
  64. #64CC
  65. #65BCC
  66. #66N/A
  67. #67TBH
  68. #68SMH
  69. #69LMAO
  70. #70ROFL
  71. #71IMHO
  72. #72TMI
  73. #73NSFW
  74. #74FOMO
  75. #75YOLO
  76. #76TL;DR
  77. #77BC
  78. #78AD
  79. #79MPH
  80. #80KPH
  81. #81RPM
  82. #82DOB
  83. #83SSN
  84. #84B2B
  85. #85B2C
  86. #86ROI
  87. #87CFO
  88. #88CTO
  89. #89CPA
  90. #90LLC
  91. #91Inc.
  92. #92Corp.
  93. #93AWOL
  94. #94MIA
  95. #95POW
  96. #96BYOB
  97. #97PTA
  98. #98SPF
  99. #99YMCA
  100. #100MTV

The full ranked list is included on this page. Use Reveal full 100 list to read it, or play the game above.