Synonyms for Junction (same or very similar meaning)
WordNet sense 1 (the state of being joined together):
conjugation, conjunction, colligationWordNet sense 2 (the shape or manner in which things come together and a connection is made):
articulation, join, joint, junctureWordNet sense 3 (an act of joining or adjoining things):
adjunctionFrom the ODE community, based on WordNetadd/edit