juncture

(noun) an event that occurs at a critical time. Synonyms: occasion. Examples: "At such junctures he always had an impulse to leave." "It was needed only on special occasions."

(noun) a crisis situation or point in time when a critical decision must be made. Synonyms: critical point, crossroads. Examples: "At that juncture he had no idea what to do." "He must be made to realize that the company stands at a critical point."

(noun) the shape or manner in which things come together and a connection is made. Synonyms: articulation, join, joint, junction.