I asked the question that I wrote below from two Moderators but I could not get any answer. Now I would like to ask it from all people in here. Please help me.
The question is about the term "in a nutshell"
. Longman Advanced American Dictionary
reveals that this phrase is informal
. I also searched this term in various websites and, almost, in all of them the phrase have been defined as an informal one. However, my sister (she has got an M.A degree in Applied Linguistic) told me that this sentence is commonly used in academic papers and articles and it is a formal one
. I was wandering if you would mind helping me in this respect and I really need to know your views about this term. Is it an informal/formal sentence?
Thanks in advance