Refers to the graphical symbol used for direction, indication, or pointing.
地図に矢印を描いて道順を示した。
I drew an arrow on the map to show the route.
出口はあの矢印の方向です。
The exit is in the direction of that arrow.
romantic interest; direction of attention
Colloquial use; often in phrases like 矢印が向く (one's interest is directed toward someone) or 矢印が立つ (to become interested in someone romantically).
彼に矢印が向いているのがバレバレだよ。
It's so obvious that you're interested in him.
最近、あの子に矢印が立ったみたい。
It seems like I've started to have feelings for that person lately.
The arrow on the map points to the exit.
I drew an arrow on the document and added an explanation.
Please proceed in the direction the arrow shows.
Recently, it seems her romantic interest has turned toward someone else.
I started having feelings for a senior in the same club.