This is the 6196th most frequent Swedish word.
kristen
Christian
Here, 'kristen' is used as an adjective to describe a person's religious affiliation.
Hon är kristen och går regelbundet till kyrkan.
She is Christian and regularly attends church.
In this case, 'kristen' functions as an adjective modifying the noun 'teology,' referring to the field of study.
Han läser en bok om kristen teologi.
He is reading a book about Christian theology.
Here, 'kristna' is used as a plural noun, denoting people who follow Christianity.