instruction vs message

instruction and message both are nouns.

Word	Noun	Adjective	Verb	Adverb
instruction	Yes	No	No	No
message	Yes	No	Yes	No

As nouns, message is a hypernym of instruction; that is, message is a word with a broader meaning than instruction:

Other hypernyms of instruction include content, subject matter, substance.

instruction (noun)	message (noun)
the profession of a teacher	content communicating a message; what something is about
the activities of educating or instructing; activities that impart knowledge or skill	a communication (usually brief) that is written or spoken or signaled
(computer science) a line of code written as part of a computer program
a message describing how something is to be done