junc ‧ ture /ˈdʒʌŋktʃə $ -ər/ BrE AmE noun [countable usually singular] formal
[ Date: 1300-1400 ; Language: Latin ; Origin: junctura , from jungere ; ⇨ ↑ join ]
a particular point in an activity or period of time:
At this juncture, I suggest we take a short break.
The talks are at a critical juncture (=very important point) .