Just went to Mirriam webster online dictionary.

1. Typed "Natural citizen" into the search. It was not recognized, instead the search offered me "natural selection".

2. Typed "Natural Born". I was directed to a page claiming that if I wished to see the definition for "Natural-born" (note hyphen included here), that I would have to sign up for an account.

3. Typed "Naturalized". I received a complete and accurate set of definitions for the word, no membership required.

4. Typed "Natural-born" (hyphen included this time in search box). Sent to "sign up" screen.

It is a free 14 day trial, but you need a credit card. I COULD do this, BUT, not sure if I want to leave that particular breadcrumb.

deep rabbit hole here.