turning point 
noun
A time at which a decisive change in a situation occurs, especially one with beneficial results: this could be the turning point in Nigel’s career...
- The turning points have been the result not of an accumulation of gradual changes in education or ‘enlightened’ official policy.
- All of the decisive turning points of German history were characterised by violent and usually bloody conflicts between the classes.
- Hardly any attention is given to the decisive turning points at which history might have taken a different path.
Synonyms
watershed, critical moment, decisive moment, crossroads, crisis, climacteric, moment of truth;
landmark
- oyster boat
- oyster boatman
- oyster bread
- oyster cap
- oystercatcher
- oyster cellar
- oyster crab
- oyster cracker
- oysterdom
- oysterer
- oyster farm
- oyster farmer
- oyster farming
- oyster feast
- oyster field
- oysterfish
- oyster-green
- oysterhood
- oysterish
- oysterishness
- oyster knife
- oyster-laying
- oysterless
- oyster-like
- oyster liquor