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Acronym pluralizations.

Q:

How do I pluralize an acronym? Do I add an apostrophe s, or just an s, or what?

A:

In the English language, acronyms are considered words. Treat them as you would any other word in the English language.

When expressing ownership, you would use an apostrophe:
IBM's earnings increased this quarter.
I was impressed by NASA's new rocket.

In most cases, just add an s:
I backed up my hard drive onto three CDs.
I helped install 20 new PCs in the computer room.

In the several years I've been researching acronyms, I have not found many hard set rules where acronyms are concerned. As long as you follow all the English language rules as if the acronym were a regular word, you should be ok.

Submitted by: Robert Fogt
Last Updated: September 28th, 2003