citizen at the time of the adoption of the Constitution.
natural born citizen.
naturalized citizen.
This should be amusing.
Again, the OTHER types are in the 14th amendment of the Constitution ... persons "All persons born or naturalized in the United States, and subject to the jurisdiction thereof
The SCOTUS ruled in U.S. v. Wong Kim Ark that "subject to the jurisdiction" meant having permanent residence and domicil in the United States. In effect, the court said this only applied to the children of resident aliens because natural-born citizens were excluded from the operation of the birth clause of the 14th amendment. Thus, the birth clause is only operation for:
including all children here born of resident aliens
The SCOTUS cited a N.J. ruling for guidance on this point, respecting this cirumstance:
when the parents are domiciled here, birth establishes the right to citizenship
IOW, if the parents are NOT domiciled here, birth does NOT estblish a right to citizenship.