Writing for Business - A Whatis.com Blog

May 27 2009   5:02PM GMT

Which is correct — OSes or OS’s?

Ivy Wigmore Ivy Wigmore Profile: Ivy Wigmore

typing Which is correct?
The criteria for choosing among ____ for mobile devices are complicated.
a. OS’s
b. OSes

Answer: b.
Explanation: Use the usual form for pluralizing a word ending in s, which is to add es.

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