Wiktionary
n. The status of being a citizen of two countries
Usage examples of "dual citizenship".
That Saturday night the entire Sakagawa family battled out this problem of dual citizenship, in Japanese.
We have a blood-relative who's got dual citizenship, if you recall.
As I have stated earlier, we will gladly permit dual citizenship for those natives who prefer to keep their American passports.
I've learned that his name is Emmanuel Weingrass, an architect with dual citizenship in both Israel and the United States, and that he had major surgery a number of months ago.
He'd emigrated there in June of 1980 and obtained dual citizenship at the tender young age of twenty-two.
Smith is also a citizen of the United States and of the Federation, by derivation-dual citizenship with no conflict.
He had dual citizenship, spoke French like a native, but considered himself British.
I didn't really see why the concept of dual citizenship shouldn't apply.