operative vs PI

PI vs operative

operative and PI both are nouns.

operative is an adjective but PI is not an adjective.

Word	Noun	Adjective	Verb	Adverb
operative	Yes	Yes	No	No
PI	Yes	No	No	No

As nouns, operative and PI are synonyms defined as:

operative and PI: someone who can be employed as a detective to collect information and assist in criminal investigations

Other synonyms of operative include private detective, private eye, private investigator, shamus, sherlock.

operative (noun)	PI (noun)
someone who can be employed as a detective to collect information and assist in criminal investigations	an antiviral drug used against HIV; interrupts HIV replication by binding and blocking HIV protease; often used in combination with other drugs
a person secretly employed in espionage for a government	someone who can be employed as a detective to collect information and assist in criminal investigations
	the scientist in charge of an experiment or research project

operative (adjective)	PI (adjective)
being in force or having or exerting force
relating to or requiring or amenable to treatment by surgery especially as opposed to medicine
(of e.g. a machine) performing or capable of performing
effective; producing a desired effect

Difference between operative and PI

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