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100 Abbreviations Every Middle School Student Should Know

January 27, 2026

No. Term Definition
1. Abs. Absent; not present.
2. Acct. Account; record of money or information.
3. Adj. Adjective; describes a noun.
4. Admin. Administration; managing an organization.
5. Alt. Alternative; another choice.
6. Amt. Amount; quantity or total.
7. App. Application; a program or request form.
8. Appt. Appointment; scheduled meeting time.
9. Apr. April; fourth month.
10. ASAP As soon as possible; quickly.
11. Attn. Attention; for the notice of.
12. Aug. August; eighth month.
13. Ave. Avenue; a street type.
14. Bk. Book; printed reading material.
15. Bldg. Building; a structure.
16. BTW By the way; extra note.
17. C/O Care of; delivered through someone.
18. Cal. Calendar; schedule of dates.
19. Cfm. Confirm; verify details.
20. Ch. Chapter; section of a book.
21. Cmd. Command; instruction to a computer.
22. Co. Company; a business.
23. Cont. Continue; keep going.
24. Ctrl Control; keyboard key for shortcuts.
25. D/C Discontinue; stop using.
26. Dec. December; twelfth month.
27. Dept. Department; division of an organization.
28. Dir. Director; person in charge.
29. Dist. District; an area or region.
30. DIY Do it yourself; make it yourself.
31. DOB Date of birth; when you were born.
32. Doc. Document; written file.
33. Dr. Doctor; medical professional.
34. E.g. For example; gives an example.
35. Ed. Edition; version of a book.
36. Email Electronic mail; digital message.
37. Enc. Enclosure; included item.
38. Eq. Equation; math statement with equals.
39. Est. Established; started in a year.
40. Etc. And so on; more similar items.
41. FAQ Frequently asked questions; common answers.
42. Feb. February; second month.
43. Fig. Figure; diagram or number.
44. Fwd. Forward; send a message onward.
45. FYI For your information; helpful update.
46. Gov. Government; public authority.
47. GPA Grade point average; overall grades number.
48. Grad. Graduate; finish a school level.
49. Grp. Group; set of people.
50. H.S. High school; grades 9 to 12.
51. HR Human resources; staff and hiring office.
52. HW Homework; school work done at home.
53. I.D. Identification; proof of who you are.
54. I.e. That is; in other words.
55. Inc. Incorporated; registered business.
56. Info. Information; facts or details.
57. Int. Interview; question-and-answer meeting.
58. Inv. Invoice; bill for payment.
59. Jan. January; first month.
60. Jr. Junior; younger or lower rank.
61. Jsy. Jersey; sports shirt.
62. Jul. July; seventh month.
63. Jun. June; sixth month.
64. K-12 Kindergarten through 12th grade schooling.
65. Kg Kilogram; 1,000 grams.
66. Km Kilometer; 1,000 meters.
67. L.A. Language arts; reading and writing class.
68. Lb. Pound; weight unit.
69. Loc. Location; where something is.
70. Log-in Sign in; access an account.
71. Ltd. Limited; restricted or a business type.
72. Ms. Ms.; title for a woman.
73. Msg. Message; note or communication.
74. Mtg. Meeting; planned group talk.
75. N/A Not applicable; does not apply.
76. Natl. National; relating to a country.
77. No. Number; count label.
78. Nov. November; eleventh month.
79. Oct. October; tenth month.
80. OK All correct; acceptable.
81. Org. Organization; group with a purpose.
82. P.E. Physical education; gym class.
83. P.S. Postscript; extra note at end.
84. Pct. Percent; out of 100.
85. Ph. Phone; telephone.
86. PO Purchase order; official buying request.
87. Prep. Prepare; get ready.
88. Prof. Professor; college teacher.
89. Pt. Point; small detail or score.
90. Qtr. Quarter; one fourth or school term.
91. Qty. Quantity; how many.
92. R.S.V.P. Please reply; respond to invitation.
93. Ref. Reference; source or mention.
94. Reg. Registration; sign-up process.
95. Rpt. Report; written summary.
96. S.S. Social studies; history and civics class.
97. Sch. School; place for learning.
98. Sec. Section; part of something.
99. Sep. September; ninth month.
100. Sr. Senior; older or higher rank.
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