experiment vs enquiry

experiment and enquiry both are nouns.

Word	Noun	Adjective	Verb	Adverb
experiment	Yes	No	Yes	No
enquiry	Yes	No	No	No

As nouns, enquiry is a hypernym of experiment; that is, enquiry is a word with a broader meaning than experiment:

Other hypernyms of experiment include inquiry, research.

experiment (noun)	enquiry (noun)
the act of conducting a controlled test or investigation	a systematic investigation of a matter of public interest
a venture at something new or different	a search for knowledge
the testing of an idea	an instance of questioning

experiment (verb)	enquiry (verb)
to conduct a test or investigation
try something new, as in order to gain experience