Can someone assist me with this doubt? In many sites I have seen it written as "IP's" and in other as "IPs". What is the correct form to refer for the plural of IP?

  • 1
    You can say it either way. Both sound exactly the same. As to writing it, see the linked question. Executive summary: no apostrophe.
    – RegDwigнt
    Sep 18, 2014 at 21:04
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    I would pronounce the names of the letters: /ay'pi/ and /ay'piz/. For writing, there are no rules since IP has no history. Anyway, nobody cares whether you use an apostrophe or not, so why bother? Apostrophes are so pre-electronic tech. Sep 19, 2014 at 0:31
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    Assuming you're taking about intonational phrases, the the standard format they use in academic writing is IPs. HTH! Sep 20, 2014 at 14:22

1 Answer 1


My instinct would be to use "IPs" as adding an apostrophe implies either a contraction or ownership. This would probably be better asked in https://english.stackexchange.com/, though

  • I was going to ask down there, but as this site is focused to that theme, I decided to ask it here.
    – tachomi
    Sep 18, 2014 at 19:18
  • @tachomi: The next time, please check the help center. This is entirely off-topic here and English Language & Usage is the only acceptable site for it.
    – SvW
    Sep 18, 2014 at 19:37
  • Ok then.... I'm not able to delete the question and put it on the right site :( ... sorry for this. By the way, thanks a lot @John
    – tachomi
    Sep 18, 2014 at 20:22
  • @SvW But it is a linguistics abbreviation though that we would know about and ELL wouldn't ... Sep 20, 2014 at 14:20

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