course of events; development; outcome
Refers to the natural flow or unfolding of events, often without deliberate control. Common in phrases like 成り行きに任せる (leave to chance) or 成り行きを見守る (watch how things go).
We can only watch how things develop from here.
成り行きに任せて、計画は立てなかった。
I left it to chance and didn't make a plan.
market order; order without limit
Finance term, abbreviation of 成り行き注文. An order to buy or sell at the current market price without setting a limit.
See also: 成り行き注文
株を成り行きで売却した。
I sold the stocks at market order.
I quietly watched how the incident would unfold.
I placed a market order to buy that stock.
Whether the plan succeeds depends on how the negotiations go.
As things naturally worked out, he ended up becoming the leader.
Variant spelling without the okurigana り; less common but still encountered.