站得高、撐得住的塔
這一組取「高塔」那一半。塔還在，只是換了材料，也換了工作：不再守著門，改成撐住東西。
noun · C2
In ancient Egyptian building, the wide gateway at the front of a temple: two thick stone towers with the entrance between them.
（古埃及神廟的）塔門
核心畫面
Start with two heavy stone towers standing either side of a temple door, which is what the Greek word behind pylon named. What stays from that picture is not the door but the standing: something upright, put there on purpose, impossible to walk past without seeing. Every later use keeps one half of it — either the height that holds things up, or the standing that marks a spot.
可以從一個畫面開始：神廟門口兩側各一座厚重的石塔，希臘文 pulṓn 原本指的就是這道門。留下來的其實不是「門」，是…更多收起
可以從一個畫面開始：神廟門口兩側各一座厚重的石塔，希臘文 pulṓn 原本指的就是這道門。留下來的其實不是「門」，是「立著」——一個東西直直站在那裡，是有人故意放的，走過去不可能看不到。後來的每個意思，都取了其中一半：要嘛是高到可以撐住東西，要嘛是站著標出一個位置。From the word’s history
The source gives pylon as a learned borrowing from Ancient Greek pulon, meaning gateway.
來源說 pylon 是從古希臘文 πυλών（pulṓn，門）借進英文的。原本指神廟門口的塔門，所以「兩座立著的高塔」這個畫面，是後面所有用法的起點。
Wiktionary entry for pylon, packet evidence source_ref kaikki:3f6f69a190036ae4:585482367 (Learned borrowing from Ancient Greek πυλών)
Two branches
立在地上的記號
這一組取「立著讓人看見」那一半，高度不再重要。東西變小了，工作卻還在：站在那裡告訴你界線在哪。
noun · B2
One of a set of plastic cones placed on a road to keep cars out of a lane, or to keep people working there safe.
三角錐