在階梯上站得高：地位與等級
這一支的「層」是人爬上去的位置。公司和政府有職級，遊戲有等級，兩邊都是一格一格往上算，所以同一個字兩邊都能用。
adjective · B2
Held by, or involving, people who sit near the top of a government or an organisation and have real power to decide things.
高層的
核心畫面
Picture anything built in layers, with a position marked somewhere up the stack: floors in a building, ranks in an office, numbers on a scale, in a game. High-level puts the mark near the top. What changes from sentence to sentence is only which stack you are standing in — and one useful side effect of standing high is that you see the outline of everything and none of the small parts.
可以想成任何一種「一層一層疊起來」的東西，上面標著一個位置：大樓的樓層、公司的職級、量表的刻度、遊戲的等級。high…更多收起
可以想成任何一種「一層一層疊起來」的東西，上面標著一個位置：大樓的樓層、公司的職級、量表的刻度、遊戲的等級。high-level 就是把那個位置標在很上面。句子換來換去，變的只是你站在哪一疊東西上。還有一個順帶的效果：站得高，你看得到整片輪廓，卻看不清細節——商務英文裡「只講大方向」的用法，就是從這裡長出來的。From the word’s history
Wiktionary gives the formation plainly: high + level. Level carries the idea of a layer or a height, and high places you near the top of it.
Wiktionary 記的組成很直白：high 加 level。level 本身帶著「一層」或「高度」的概念，high 則把你的位置放在那一疊的上面。這也說明了為什麼同一個字可以講樓層、職級、數值和遊戲等級——換的只是那一疊是什麼。
Wiktionary entry 'high-level' (packet evidence), etymology_text: 'From high + level.' — source_ref kaikki:3f6f69a190036ae4:1167174489
Five branches
量表上的刻度很高
這一支的「層」不是人的位置，是量出來的數字。指針停在上面，就是 high-level。
adjective · B2
Reaching a high degree or strength of something that can be measured, such as noise, radiation, or how strongly a germ resists a medicine.
程度很高的
離地面越遠：抽象與進階的那一層
一門學問也像一疊樓層：底下是基礎，越往上越專、越抽象。這一支講的就是停在上層的東西。
adjective · C1
Dealing with ideas that are advanced, technical and hard to follow — the kind you need training or long study to understand.
高深的
從高處往下看：只看得到輪廓
站得高不只是位置高，還會改變你看到什麼。這一支抓住的正是那個副作用：範圍變大，細節消失。
adjective · B2
Giving only the general shape of something — the main points, with almost all of the detail left out.
概略的
真的在高的地方
這是整個字最貼字面的用法：那一疊是真的樓層或真的高度。上面幾支都可以想成從這個畫面延伸出去的。
adjective · B2
Placed or happening high up — at a greater height than the other parts of the same place or thing.
高處的