find vs breakthrough

find and breakthrough both are nouns.

Word	Noun	Adjective	Verb	Adverb
find	Yes	No	Yes	No
breakthrough	Yes	No	No	No

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

As nouns, find and breakthrough are synonyms defined as:

Other synonyms of find include discovery.

find (noun)	breakthrough (noun)
the act of discovering something	a penetration of a barrier such as an enemy's defense
a productive insight	making an important discovery
	a productive insight

find (verb)	breakthrough (verb)
receive a specified treatment (abstract)
accept and make use of one's personality, abilities, and situation
come to believe on the basis of emotion, intuitions, or indefinite grounds
establish after a calculation, investigation, experiment, survey, or study
decide on and make a declaration about
make a discovery, make a new finding
succeed in reaching; arrive at
perceive or be contemporaneous with
discover or determine the existence, presence, or fact of by perception with the eyes
perceive oneself to be in a certain condition or place
come upon after searching; find the location of something that was missed or lost
get something or somebody for a specific purpose
come upon, as if by accident; meet with
obtain through effort or management
get or find back; recover the use of