examiner vs scrutinizer

examiner and scrutinizer both are nouns.

Word	Noun	Adjective	Verb	Adverb
examiner	Yes	No	No	No
scrutinizer	Yes	No	No	No

As nouns, scrutinizer is a hyponym of examiner; that is, scrutinizer is a word with a more specific, narrower meaning than examiner:

Other hyponyms of examiner include bank examiner, checker, scrutiniser, canvasser, scrutineer.

examiner (noun)	scrutinizer (noun)
an investigator who observes carefully	a careful examiner; someone who inspects with great care
someone who administers a test to determine your qualifications