mujtihad vs bookman

mujtihad and bookman both are nouns.

Word	Noun	Adjective	Verb	Adverb
mujtihad	Yes	No	No	No
bookman	Yes	No	No	No

As nouns, bookman is a hypernym of mujtihad; that is, bookman is a word with a broader meaning than mujtihad:

mujtihad: an Islamic scholar who engages in ijtihad, the effort to derive rules of divine law from Muslim sacred texts
bookman: a learned person; someone who by long study has gained mastery in one or more disciplines

Other hypernyms of mujtihad include Moslem, Muslim, scholar, scholarly person.

mujtihad (noun)	bookman (noun)
an Islamic scholar who engages in ijtihad, the effort to derive rules of divine law from Muslim sacred texts	a learned person; someone who by long study has gained mastery in one or more disciplines