TSUMUGU · A2 (est.) · 字
線
線 ＝ 糸 ＋ 泉
ㄒㄧㄢˋ · xiàn
noun — thread, line, wire
字源 FORM — what the parts do
糸義thread, silk
IFTquán → xiàn — initial, final and tone all move
A thread (糸) runs out long and unbroken, the way a spring (泉) runs its water in one thin trickle. 泉 quán carries the sound here. From the single strand: 線索、電線、路線. (The variant 綫 swaps in 戔 for the sound.)
故事 STORY — a scene to remember it by
一縷絲線（糸）抽出來，細長不斷——像泉水（泉）流成一條。
A strand of silk (糸) drawn out long and unbroken — like a spring (泉) running off in one thin line.
字源記憶法
意 · Meanings
(本義)線— a thread, a line常用
→電線、線路— wire; a line, a route常用
⇒線索— a clue — a thread to follow
(本義) original meaning · → ⇒ each arrow = one more step of extension