I was sure that the " character is called double quotation mark and ' is called single quotation mark -- until I opened my InDesign CS6 and noticed that " is called double quotation marks (sic). Plural.

  • Is it at least grammatical and syntactically correct?
  • Is it common?

I never saw that " is referred as plural, but on the other hand Adobe is creditable company and InDesign is creditable software.

ps InDesign CS6 is from 2012 year, and since I have not tried newer versions,the wording might be corrected since then.

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  • It's not a sentence, or anything like one, so it's hard (or impossible) to say whether it's grammatical, but it clearly doesn't fit the pattern of the other items in that menu.
    – Juhasz
    Jan 7, 2022 at 18:06
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    Have you looked up "quotation mark" in a dictionary? Most should define that term. If dictionary definitions are confusing or unclear and you think that someone here can clarify, then feel free to ask about that. Jan 7, 2022 at 18:09
  • @MarcInManhattan, I know what quoation marks are. :-) I simply cannot understand why Adobe decided to refer to each of the double quotation marks as "quotation marks" (plural) instead of "quotation mark" (singular). I want to understand whether this practise is widespread.
    – user90726
    Jan 7, 2022 at 18:19
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    Adobe is going against the mainstream. This is a character (singular) called a 'double quotation mark': " (they also come in left and right varieties) and this "word" is surrounded by double quotation marks. Jan 7, 2022 at 18:54
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    @jsv Yes, that's why I suggested looking in dictionaries; if you check a few, you will either get consistent answers (suggesting that that usage is fairly standard) or differing answers (suggesting that varying usages are possible). I think that that will be more authoritative than anything that someone here might say. Jan 7, 2022 at 19:20

1 Answer 1


There is variation in use, as you have found. I find both quotation mark and quotation marks equally acceptable, when referring to a single character (which may be formed of two inverted or raised commas)

However, as quotation marks tend to be used in pairs, when referring to a pair, you must use "marks":

You should enclose a direct quote in quotation marks.

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