also: いくさき
The place one is heading to; used for physical destinations in travel or movement.
旅行の行く先はまだ決めていない。
I haven't decided on the destination for my trip yet.
Refers to the location or whereabouts of a person, often used when the location is unknown or being inquired about.
彼の行く先が分からなくなった。
I lost track of his whereabouts.
Metaphorical extension: what lies ahead in life, career, or a situation; often used in expressions like 行く先が不安だ.
就職活動で行く先が見えず、不安だ。
I can't see my future prospects in job hunting, and I'm anxious.
He left home without telling anyone his destination.
Her whereabouts are unknown, and her family is worried.
Having lost his dream, he lost his sense of direction in life.
Thinking about the company's future, I feel anxious about what's ahead.
We haven't decided on our travel destination yet.