instruction vs formula

instruction and formula both are nouns.

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

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

instruction (noun)	formula (noun)
the profession of a teacher	something regarded as a normative example
the activities of educating or instructing; activities that impart knowledge or skill	(mathematics) a standard procedure for solving a class of mathematical problems
(computer science) a line of code written as part of a computer program	a group of symbols that make a mathematical statement
a message describing how something is to be done	a conventionalized statement expressing some fundamental principle
	directions for making something
	a representation of a substance using symbols for its constituent elements
	a liquid food for infants