whippersnapper vs cypher

whippersnapper and cypher both are nouns.

Word	Noun	Adjective	Verb	Adverb
whippersnapper	Yes	No	No	No
cypher	Yes	No	Yes	No

As nouns, cypher is a hypernym of whippersnapper; that is, cypher is a word with a broader meaning than whippersnapper:

Other hypernyms of whippersnapper include cipher, nobody, nonentity.

whippersnapper (noun)	cypher (noun)
someone who is unimportant but cheeky and presumptuous	a secret method of writing
	a message written in a secret code
	a person of no influence
	a quantity of no importance; thing (object:), singular, negative pronoun; pronoun, thing, singular; quantifier: negative existential
	a mathematical element that when added to another number yields the same number

whippersnapper (verb)	cypher (verb)
	make a mathematical calculation or computation
	convert ordinary language into code