同一個直筒杯，兩種工作
兩個意思共用同一個形狀，差別只在裝什麼、放在哪個房間裡。
noun · B2
In British English, a cup you drink from that has straight sides and no handle, usually made of plastic and often the kind given to young children.
（無把手的）杯子
核心畫面
One picture carries this whole word: a straight-sided pot with a flat bottom, a wide open top and nothing to hold it by. No handle, no stem, no curve. That bare shape is useful in two different rooms. In a kitchen it is a cup a small child cannot easily tip over; on a science bench it is a container you can stand on a hot plate, stir, and pour from. The word did not change meaning between those rooms — the same object simply picked up a second job.
一個畫面就把這個字包住了：直的杯身、平的底、開口很寬、旁邊什麼都沒有。沒有把手，沒有腳，也沒有腰身。就因為形狀這麼素…更多收起
一個畫面就把這個字包住了：直的杯身、平的底、開口很寬、旁邊什麼都沒有。沒有把手，沒有腳，也沒有腰身。就因為形狀這麼素，它在兩個完全不同的房間裡都好用。在家裡，它是小孩不容易打翻的杯子；在實驗室，它是可以整個放上加熱板、攪拌、再倒出來的容器。這個字並沒有在兩個房間之間換過意思——是同一個東西多接了一份工作。From the word’s history
From Middle English bekyr, from Old Norse bikarr, a cup; related to Dutch beker and German Becher, and possibly back to Late Latin bicarium, a jug. So the drinking vessel is the older job, and the laboratory glass borrowed the name along with the shape.
來自中古英語 bekyr，再往前是古北歐語 bikarr（杯子），跟荷蘭語 beker、德語 Becher 同源，更早可能連到晚期拉丁語 bicarium（壺）。所以「喝的杯子」是比較老的身分，實驗室的玻璃燒杯是連形狀帶名字一起借過去的。
Wiktionary entry supplied in this packet (kaikki:3f6f69a190036ae4:985011895): From Middle English bekyr, biker, from Old Norse bikarr; cognate Dutch beker, German Becher; possibly from Late Latin bicarium.
One branch