KanjiJLPT N3
Line

line, track

Mnemonic

Your grandma draws a line in the wet ground beside the fountain. She traces line after line, mapping every train route she ever traveled. The fountain's stream flows along each line perfectly, as if grandma commands the water itself.
Additional thoughts
Picture grandma crouching by a park fountain, using her cane to etch train route lines into the mud. The fountain water magically follows her traced paths like living ink. The image of water obeying her lines makes it stick.
Quick recall
Grandma traces a line in the ground and the fountain water follows it.

Details

The keyword for 線 is line. This kanji refers to a line in both concrete and abstract senses, including physical lines drawn on a surface, routes of transportation such as train lines, and boundaries or connections between points. It encompasses the idea of a continuous, elongated mark or path, as well as figurative uses such as a line of reasoning or a course of action.
On'yomi
せん
Kun'yomi
すじ