Refers to a sequential order or one's turn in a queue, schedule, or procedure. Often used with verbs like 待つ, 来る, 回ってくる, or in phrases such as 順番に.
There are many people waiting for their turn.
名前の順番に並んでください。
Please line up in the order of your names.
It'll soon be my turn.
I'm waiting for my turn at the hospital.
Everyone is lining up in order without cutting in.
My turn finally came around.
The students gave their presentations one by one, in order.
Let's decide the order with rock-paper-scissors.
順番 is a general word for order or sequence of turns, whereas 輪番 specifically means a recurring rotation that cycles back to the start.
順番 is a general term for order or turn, whereas 持ち回り specifically implies a rotating system where the same role circulates.
collating sequence
sequential logical order