turning point

1. (idiomatic)A decisive point at which a significant change or historical event occurs, or at which a decision must be made.

   Wendepunkt, Zäsur

   перело́мный моме́нтperelómnyj momént, поворо́тный моме́нтpovorótnyj momént, поворо́тный пунктpovorótnyj punkt

   перело́мний моме́нтperelómnyj momént, поворо́тний моме́нтpovorótnyj momént, поворо́тний пунктpovorótnyj punkt

   an event marking a unique or important historical change of course or one on which important developments depend

2. A maximum or minimum on a graph.

   Extremwert

3. A crossroads.

4. A T-junction.

5. A place at which one changes their direction of travel.

regular