theologian vs Dietrich Bonhoeffer

theologian and Dietrich Bonhoeffer both are nouns.

Word	Noun	Adjective	Verb	Adverb
theologian	Yes	No	No	No
Dietrich Bonhoeffer	Yes	No	No	No

theologian (noun)	Dietrich Bonhoeffer (noun)
someone who is learned in theology or who speculates about theology	German Lutheran theologian and pastor whose works concern Christianity in the modern world; an active opponent of Nazism, he was arrested and sent to Buchenwald and later executed (1906-1945)