Abbreviations
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There are conventions for using abbreviations, especially in academic essays. The following conventions are specifically for non-technical writing, but keep in mind that each discipline has its own conventions for using abbreviations. In general, consider your audience and your purpose whenever using an abbreviation.


Personal and Professional Titles

When used before or after a name, most personal and professional titles and academic degrees are abbreviated.

Ms. Mona Bethel
Rev. Peter Pringle
Dr. Stu Wrightman
St. Thomas
Francis Jones, Ph.D.
Treat Simpson, LL. D.
Terence McTavish, M.D.

Spell out a title if it does not accompany a proper name.

Wrong: My Dr. made a really thick cast.
Corrected: My doctor made a really thick cast.

Use either a title or an academic degree, but never both.

Wrong: Dr. Stu Wrightman, M.D.
Corrected: Dr. Stu Wrightman
Corrected: Stu Wrightman, M.D.

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Acronyms and Initial Abbreviations

Acronyms are abbreviations that can be pronounced as words; for example NATO is the acronym for the North Atlantic Treaty Organization. Initial abbreviations are those which are pronounced as separate initials. CBC, which stands for Canadian Broadcasting Corporation, is an initial abbreviation. Familiar abbreviations and acronyms are acceptable in most writing, such as IBM, DNA, UNICEF, AIDS, WWF. Note that abbreviations of three or more words are usually written without periods: UCLA, JFK, NBC and GATT.

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Names and Terms

If you use a long name or term throughout an essay, you may abbreviate it according to the following conventions:

  1. The first time you use the term spell it out fully with the abbreviation in parentheses immediately after the spelled-out term.
  2. The next time you use the term, you can use the abbreviation alone.

Canada is an outstanding member of the United Nations (UN). Its contributions are often recognized by the UN.

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Time and Symbols with Numerals

The following abbreviations are always acceptable as long as they are accompanied by numerals.

250 B.C. (or B.C.E.)
("before Christ" follows the date)
A.D. 53 (C.E.)
("anno Domini" ("year of our Lord") precedes the date)
2:10 A.M
("ante meridiem" ("before noon"))
4:25 P.M
("post meridiem" ("after noon"))
$500
No. 13

Never use these abbreviations when they are not accompanied by a numeral.

Wrong: I had a sandwich in the late P.M.
Corrected: I had a sandwich in the late afternoon.

In the humanities, you should spell out percent and cent, instead of using the symbols % and ¢. Also spell out @, #, +, and =.

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Avoiding Inappropriate Abbreviations

Abbreviations are used to make streamline needlessly complicated writing. But they are not appropriate in every context. The following conventions will help you to avoid inappropriate abbreviations in academic writing:

  1. Spell out units of measurement: feet (not ft.)

  2. Spell out months: September (not Sept.)

  3. Spell out personal names: Frederick (not Fr.)

  4. Spell out courses: political science (not poli. sci.)

  5. Spell out geographical names: Massachusetts (not Mass.)

  6. Spell out divisions of written works: page (not pg.)

  7. Spell out days of the week: Tuesday (not Tues.)

  8. Spell out reference information: editor (ed.)

  9. Spell out holidays: Christmas (not Xmas)

It is acceptable to use company abbreviations, such as Inc., Co., and Corp. and the ampersand symbol "&" if and only if they are part of a company’s name. When they do not accompany a name, do not abbreviate these words.

Wrong: My favourite Co. is Microsoft.
Corrected: My favourite company is Microsoft.

Latin abbreviations are acceptable in footnotes, endnotes, and bibliographies, but avoid them in academic writing. Use the appropriate English phrases.

Wrong: The Olympics has gone too far in allowing into the games non-athletic sports, eg. the pastime of horseshoes.
Corrected: The Olympics has gone too far in allowing into the games non-athletic sports, for example, the pastime of horseshoes.

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