juncture

/ˈdʒʌŋktʃər/
noun
  1. A particular point in time, especially a critical or important one.
    • She paused at a key juncture in her speech to let the audience think.
    • The project reached a critical juncture when funding ran out.
    • At this juncture, we need to decide whether to continue or stop.
  2. A place where two things join or meet; a junction.
    • There is a small café at the juncture of Main Street and Elm Avenue.
    • The juncture between the wall and the ceiling had a crack.
    • The juncture of the two rivers creates a wide, calm lake.
Antonyms