(an act of) agreeing to a time and place to meet

arrangement for meeting; prearranged meeting

an uncertain event (especially one causing problems)

chance happening; possibility

(in the event of) a serious and dangerous happening or situation needing quick action

crisis, danger

a state of affairs, especially in the phrase: at this juncture = at this time

turning point

a narrow passage of water connecting two seas; trouble; difficulty

crisis, difficulty