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© 2006 Phil Druker
University of Idaho
 
Resources / Colons
 

 


Resources

General

Outlines

Sentence Style
Apostrophe
BE Verbs
Capital Letters
Colons
Comma Rules
Nominalization
Parallelism
Passive Sentense
Pronoun Agreement
Revision Symbols
Semicolons
Splice/Fragment
Sentence Types
Subject-Verb Agreement
Transition Words
Wordiness

Formatting

Citing Sources

 

 

 

 

 

Colons
  
Colons: when to use them

Mainly we use colons to introduce lists. Some formal copy editors insist that colons only follow complete sentences, but in normal practice this isn’t necessary.

Here’s a complete list of rules for when to use colons:

  1. To introduce lists.

    To complete the objectives, we plan to take these steps:

    1. Perform secondary research
    2. Develop a basic design
    3. Refine the design using these calculations:
      1. Stress
      2. Sheer
      3. Fatigue
    4. Build the scale model
    5. Test the scale model
    6. Write the results.

    ** Remember to use parallelism with lists. (Note how all the elements in the list above start with verbs—action words.)
     

  2. To separate clauses and give emphasis.

    His reason for accepting the lowest-paying job offer was simple: he always wanted to live in the Northwest.
     
  3. To introduce an explanation
     

    I want you to understand one point: colons emphasize the idea that follows them.
     
  4. To introduce quotations
     

    He always believed in the precept: “To thine own self be true.”
    This works especially to introduce long quotations.

 

 

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University of Idaho
Environmental Science Program
Advanced Technical Writing

thompson@uidaho.edu