LIST OF ACRONYMS AND INITIALISMS

-list of acronyms and initialisms across every possible category, expanded with more examples:

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Everyday Abbreviations

1. AKA – Also Known As

2. ATM – Automated Teller Machine

3. DOB – Date Of Birth

4. ETA – Estimated Time of Arrival

5. PIN – Personal Identification Number

6. PSA – Public Service Announcement

7. FAQ – Frequently Asked Questions

8. TBA – To Be Announced

9. TBC – To Be Confirmed

10. RSVP – Répondez S'il Vous Plaît

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Internet Slang & Social Media

11. AFK – Away From Keyboard

12. ASAP – As Soon As Possible

13. IDK – I Don’t Know

14. TBH – To Be Honest

15. TMI – Too Much Information

16. OMG – Oh My God

17. BRB – Be Right Back

18. FYI – For Your Information

19. DM – Direct Message

20. FYP – For You Page (TikTok)

21. OOTD – Outfit Of The Day

22. WCW – Woman Crush Wednesday

23. ICYMI – In Case You Missed It

24. HMU – Hit Me Up

25. LMAO – Laughing My A** Off

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Work/Professional

26. CEO – Chief Executive Officer

27. CFO – Chief Financial Officer

28. HR – Human Resources

29. KPI – Key Performance Indicator

30. PTO – Paid Time Off

31. EOD – End Of Day

32. B2B – Business To Business

33. R&D – Research and Development

34. ROI – Return On Investment

35. MOU – Memorandum of Understanding

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Education and Academia

36. GPA – Grade Point Average

37. SAT – Scholastic Aptitude Test

38. PhD – Doctor of Philosophy

39. MBA – Master of Business Administration

40. STEM – Science, Technology, Engineering, Mathematics

41. ESL – English as a Second Language

42. TA – Teaching Assistant

43. MOOC – Massive Open Online Course

44. TOEFL – Test of English as a Foreign Language

45. LMS – Learning Management System

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Science & Technology

46. CPU – Central Processing Unit

47. RAM – Random Access Memory

48. HTML – HyperText Markup Language

49. CSS – Cascading Style Sheets

50. AI – Artificial Intelligence

51. IoT – Internet of Things

52. VPN – Virtual Private Network

53. DNS – Domain Name System

54. UX/UI – User Experience/User Interface

55. API – Application Programming Interface

56. URL – Uniform Resource Locator

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Travel and Geography

57. EST – Eastern Standard Time

58. GMT – Greenwich Mean Time

59. CT – Central Time

60. LHR – London Heathrow Airport

61. JFK – John F. Kennedy International Airport

62. EU – European Union

63. USA – United States of America

64. AUS – Australia

65. UAE – United Arab Emirates

66. NZ – New Zealand

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Health and Medicine

67. ICU – Intensive Care Unit

68. CPR – Cardiopulmonary Resuscitation

69. BMI – Body Mass Index

70. DNA – Deoxyribonucleic Acid

71. IV – Intravenous

72. HIV – Human Immunodeficiency Virus

73. BP – Blood Pressure

74. ER – Emergency Room

75. OTC – Over The Counter

76. PPE – Personal Protective Equipment

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Military

77. AWOL – Absent Without Leave

78. MIA – Missing In Action

79. POW – Prisoner Of War

80. NATO – North Atlantic Treaty Organization

81. ROE – Rules of Engagement

82. IED – Improvised Explosive Device

83. CO – Commanding Officer

84. GI – Government Issue

85. USMC – United States Marine Corps

86. AF – Air Force

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Sports

87. MVP – Most Valuable Player

88. PK – Penalty Kick

89. OT – Overtime

90. NBA – National Basketball Association

91. NFL – National Football League

92. FIFA – Fédération Internationale de Football Association

93. VAR – Video Assistant Referee

94. WOD – Workout Of the Day

95. RBI – Runs Batted In (baseball)

96. ATP – Association of Tennis Professionals

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Finance

97. IPO – Initial Public Offering

98. P/L – Profit and Loss

99. USD – United States Dollar

100. GBP – Great British Pound

101. CAD – Canadian Dollar

102. APR – Annual Percentage Rate

103. FY – Fiscal Year

104. SLA – Service Level Agreement

105. ETF – Exchange-Traded Fund

106. FDIC – Federal Deposit Insurance Corporation

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Miscellaneous

107. DIY – Do It Yourself

108. RIP – Rest In Peace

109. TGIF – Thank God It’s Friday

110. YOLO – You Only Live Once

111. BTS – Behind The Scenes

112. ETA – Estimated Time of Arrival

113. BTW – By The Way

114. TBD – To Be Determined

115. IMO – In My Opinion

116. NSFW – Not Safe For Work

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This list combines general usage, work, internet slang, education, science, travel, health, sports, and more! Let me know if you'd like even further expansion.