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Ending a Sentence with an Abbreviation

Does the period that ends the abbreviation also end the sentence?

By
Mignon Fogarty,
January 17, 2012

Ending a Sentence with an Abbreviation

When you end a sentence with an abbreviation, you don't need an extra period.

  • Apple Computer, Inc. became Apple, Inc.. (wrong)
  • Apple Computer, Inc. became Apple, Inc. (right)

The period that ends the abbreviation also ends the sentence. Think of it as an environmentally friendly rule—one dot of ink;serves two purposes.

Even though such sentences are correct, they can confuse readers who may not realize you've ended the sentence. It's best;to write out the abbreviated word if it falls at the end of a sentence or to rewrite the sentence so the abbreviation doesn't come at the end.

The story is different when the sentence is a question or exclamation—then you need both punctuation marks:

  • Why did they choose Apple, Inc.?
  • I adore their name: Apple, Inc.!

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Abbreviations, Initialisms, and Acronyms
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The Grammar DevotionalGet more tips like this in;The Grammar Devotional:

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