marshall vs lawman

marshall and lawman both are nouns.

Word	Noun	Adjective	Verb	Adverb
marshall	Yes	No	No	No
lawman	Yes	No	No	No

As nouns, lawman is a hypernym of marshall; that is, lawman is a word with a broader meaning than marshall:

marshall: a law officer having duties similar to those of a sheriff in carrying out the judgments of a court of law
lawman: an officer of the law

Other hypernyms of marshall include law officer, peace officer.

marshall (noun)	lawman (noun)
a law officer having duties similar to those of a sheriff in carrying out the judgments of a court of law	an officer of the law
(in some countries) a military officer of highest rank