Browse Definitions :

The plural of “OS”

Writing for Business

Which is correct?
Running only Web apps is expected to make Chrome more secure than other ______.
a. OS’s
b. OSes
c. OSs

Answer: c.

I have to say, I prefer OSes myself, probably because I prefer spellings that reflect pronunciation when there’s any question. However the usual form for pluralizing an initialism or acronym is simply to add an s, even if the word already ends in an s. See a debate about this issue here.

This post has been edited — and the answer changed — in response to an extremely irate email I received yesterday. Oh my! People feel very strongly about spelling issues. We’re heading into the festive season here and so I would prefer not to be tarred and feathered. Nevertheless, I would have stuck to my guns if I’d felt justified.

To my dismay, I found that according to Microsoft’s style guide and some other technical sources, OSs is the standard plural of OS. I don’t like it, but it is not up to me.

Follow us on Twitter @tao_of_grammar

Dig Deeper on Writing for Business

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

-ADS BY GOOGLE

SearchCompliance

  • PCI DSS (Payment Card Industry Data Security Standard)

    The Payment Card Industry Data Security Standard (PCI DSS) is a widely accepted set of policies and procedures intended to ...

  • risk management

    Risk management is the process of identifying, assessing and controlling threats to an organization's capital and earnings.

  • compliance framework

    A compliance framework is a structured set of guidelines that details an organization's processes for maintaining accordance with...

SearchSecurity

  • Trojan horse (computing)

    In computing, a Trojan horse is a program downloaded and installed on a computer that appears harmless, but is, in fact, ...

  • identity theft

    Identity theft, also known as identity fraud, is a crime in which an imposter obtains key pieces of personally identifiable ...

  • DNS over HTTPS (DoH)

    DNS over HTTPS (DoH) is a relatively new protocol that encrypts domain name system traffic by passing DNS queries through a ...

SearchHealthIT

  • telemedicine (telehealth)

    Telemedicine is the remote delivery of healthcare services, such as health assessments or consultations, over the ...

  • Project Nightingale

    Project Nightingale is a controversial partnership between Google and Ascension, the second largest health system in the United ...

  • medical practice management (MPM) software

    Medical practice management (MPM) software is a collection of computerized services used by healthcare professionals and ...

SearchDisasterRecovery

SearchStorage

  • M.2 SSD

    An M.2 SSD is a solid-state drive (SSD) that conforms to a computer industry specification and is used in internally mounted ...

  • kilobyte (KB or Kbyte)

    A kilobyte (KB or Kbyte) is a unit of measurement for computer memory or data storage used by mathematics and computer science ...

  • virtual memory

    Virtual memory is a memory management capability of an operating system (OS) that uses hardware and software to allow a computer ...

Close