I have run across a movie called "12 Years a Slave" and am a bit confused with the title. The first suggestion to come to my mind is that it means 12 years of slavery, but I'm not sure.
Could you parseexplain this expression, please?
Can it be used in other contextanother context except as a title of a movie/book/article title?
And could you give some examples of it'sits usage, then.
Thank you.