crossroads
Synonym discussion
Sense: noun/2
For noun/2, crossroads suggests a moment when more than one future is open and someone must choose a direction. Turning point is broader: it can describe any moment after which things change, even if no one actively decides. Decision point is more direct and practical, so it fits plans, projects, and business discussions. Watershed is more formal and is often used after the fact for a moment later seen as historically important. If a student must choose between moving abroad, staying home, or changing careers, crossroads sounds natural. A coach discussing the exact play that changed a match is more likely to say turning point.
Etymology
Crossroads is a compound formed in English from cross and road. It first named the place where roads meet, and later extended to the figurative sense of a moment when different directions are possible and a choice matters.