Hello,
In the following sentence, if I add a comma before "which", does it make a difference ?
A dictionary is a book which gives you the meanings of words.
A dictionary is a book, which gives you the meanings of words.
Thank you very much.
stephenlearner ... does it make a difference? Yes, the difference is that it would be wrong!
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stephenlearner... does it make a difference?
Yes, the difference is that it would be wrong!
The relative clause is clearly a defining (restrictive) one, so no comma is required.
stephenlearnerIn the following sentence, if I add a comma before "which", does it make a difference ?
It is incorrect with a comma.
Here the comma is optional.
A dictionary is a book with word definitions, which sometimes includes an appendix giving the history of the language.