connection vs junction

connection and junction both are nouns.

Word	Noun	Adjective	Verb	Adverb
connection	Yes	No	No	No
junction	Yes	No	No	No

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

connection: the act of bringing two things into contact (especially for communication)
junction: an act of joining or adjoining things

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

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

connection: a connecting shape
junction: the shape or manner in which things come together and a connection is made

Other hyponyms of connection include node, articulation, join, joint, juncture.

connection (noun)	junction (noun)
the act of bringing two things into contact (especially for communication)	an act of joining or adjoining things
shifting from one form of transportation to another	the place where two or more things come together
an instrumentality that connects	something that joins or connects
the process of bringing ideas or events together in memory or imagination	the shape or manner in which things come together and a connection is made
a supplier (especially of narcotics)	the state of being joined together
(usually plural) a person who is influential and to whom you are connected in some way (as by family or friendship)
a relation between things or events (as in the case of one causing the other or sharing features with it)
a connecting shape
the state of being connected