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© 2006 Phil Druker
University of Idaho
 
Resources / Semicolons
 

 


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

 

 

 

 

 

 

 

 

 

 

Semicolons ;
 
Semicolons are “super commas.”
Main rule: Use semicolons to connect complete sentences:


The rotor turns, and it creates an electromotive field. < no semicolon

The rotor turns, and thus it creates an electromotive field. < no semicolon

The rotor turns ; thus it creates an electromotive field. < semicolon

Rule:

bulletUse a semicolon to replace and + a comma.
bulletUse a semicolon when you are combining sentences with conjuncts [link to transition word page]: however, therefore, thus, consequently. . . 
 
The problem of acid rain has become critical, and therefore we need to install scrubbers. < no semicolon

The problem of acid rain has become critical ; therefore, we need to install scrubbers. < semicolon

The project was complete, and we were glad to move on to something
new. < no semicolon

The project was complete ; we were glad to move on to something 
new. < semicolon

Note: can you use a comma here? No, then you have 
a comma splice.

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

Another use of semicolons:

We are opening new branches in Santa Fe, New Mexico; Missoula, Montana; and Moscow, Idaho.

The members of the committee include Jim Jensen, architect ; Bob Hanson, civil engineer ; Greg Cook, electrical engineer ; and Mary Storm, project supervisor.

Rule:  Use semicolons for clarity to set off phrases that already contain commas.

 

 

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Phil Druker © 2006  

 

University of Idaho
Environmental Science Program
Advanced Technical Writing

thompson@uidaho.edu