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I would like to warn my customers that names can be duplicate. How do I put it in words? In MS Word when I entered Name can be duplicate., it draws a green line under duplicate. Whats my mistake?

Update: Say I have two products in my store with same name. I don’t want my customers to be confused when they see two different products with same name. If I have to warn them with a written notice, how should I write that?

For now, I wrote it as, “Multiple products with same name can exist at a time.” But I don’t understand why my initial statement was wrong.

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closed as general reference by tchrist, simchona, Mahnax, Bravo, JSBձոգչ Aug 2 '12 at 12:17

This question is too basic; it can be definitively and permanently answered by a single link to a standard internet reference source designed specifically to find that type of information.If this question can be reworded to fit the rules in the help center, please edit the question.

What do you mean, names can be duplicate? – simchona Aug 2 '12 at 0:39
Two people can have the same name? 'Please give both your given name and family name'? what are you getting at? – Mitch Aug 2 '12 at 0:42
Your mistake comes from using Microsoft instead of vi, obviously. I promise that if you upgrade, the green line will go away. – tchrist Aug 2 '12 at 0:43
I think you are looking for "names are not unique". I think. Why MS Word puts a green line there, I can't possibly know. Perhaps it considers duplicate without an article an adjective, awaiting a noun to follow. – RegDwigнt Aug 2 '12 at 0:50
Updated the question. If its not name, it can be something else that can be duplicate. How would I form a statement with placeholder for that duplicate thing. – Alexander Aug 2 '12 at 0:51
up vote 3 down vote accepted

"Duplicate" can be a noun or a verb. So, for example, both "Name can be a duplicate," or "names can be duplicated," make sense.

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Name can be a duplicate seems right to Word. – Alexander Aug 2 '12 at 21:38

You either mean to say, "Names can be duplicated" or "Duplicate names are a possibility" or "(Any of the) names may be a duplicate". Better still, as RegDwight said, "Names may not be unique."

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Clearly Microsoft Word does not know that duplicate is an adjective (as well as a verb and a noun). The OED says:

duplicate, adj.  1. Double, twofold, consisting of two corresponding parts; that is made or exists in two corresponding examples.  2. Double, doubled; consisting of twice the number or quantity.  3. That is the exact counterpart or ‘double’ of something already in existence.

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