Is there a difference between using "number" and "numbers" when referring to multiple numbers?

For example, when calling a merchant to inquire about multiple orders, should I say:

I need RMAs for order numbers 1 and 2.


I need RMAs for order number 1 and 2.

This question might sound stupid, but I'm not sure what the main subject is. Is "number" the subject and therefore should I use "numbers"? Or are the order numbers (1 and 2) the subject, so should I keep "number" singular?

  • 5
    Personally, I'd say "for orders number 1 and 2". Commented Jun 12, 2013 at 3:50

1 Answer 1


I usually hear that as "Order numbers 1 and 2", with the "s". Fumble's comment gives a good way to get around it anyway.

  • Hi TecBrat, can you elaborate on your answer please? When possible, answers with more information are usually better :)
    – WendiKidd
    Commented Jun 12, 2013 at 22:16

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