General meaning:
* Tour - This is the most common word for "turn" in general. It can refer to a turn of events, a turn of the key, a turn on the road, etc.
Specific meanings:
* Tourner - This verb means "to turn" in the sense of rotating or moving in a circle.
* Retourner - This verb means "to return" or "to turn around".
* Se retourner - This reflexive verb means "to turn around" or "to look back".
* Tournant - This noun means "turning point" or "bend".
* Tournée - This noun means "tour" (like a concert tour).
* Tourbillon - This noun means "whirlwind" or "whirl".
In a specific context, you can use the phrase "à son tour":
* à son tour - This means "in turn" or "in his/her turn".
Example:
"The car turned left at the corner." - "La voiture a tourné à gauche au coin."