A perfectly flat, level surface stretching out smooth in every direction — no bumps, no slope. From this one idea of 'flat and level' most of the meanings grow.
From the word’s history
Most senses come from Latin 'planus' (level, flat); the flat-surface sense was coined in the 1600s to separate the geometric meanings from 'plain'. The aircraft sense is a shortening of 'aeroplane', named for its flat wing-surfaces. The 'plane tree' is unrelated, from Greek 'platanos' (from 'platys', broad), referring to its broad leaves.
大部分用法都來自拉丁文 planus（平、齊）；「平面」這個幾何義是 17 世紀為了跟 plain 區分而另造的。飛機義是 aeroplane（飛行平面，指機翼那片平展的面）縮短而來。但「懸鈴木（行道樹）」這一支與前面無關，來自希臘文 platanos（源自 platys「寬廣」），指它寬大的葉子。
etymonline.com (plane)
登入就可以看每一支怎麼連回核心畫面。
原始詞典資料16 筆記錄
以下是外部詞典記錄的用法，摘錄並精簡格式，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
planeadj詞源 1/pleɪn/
- 1
Of a surface: flat or level.
planenoun詞源 1/pleɪn/
- 1
A level or flat surface.
- 2
geometrymathematicssciencesA flat surface extending infinitely in all directions (e.g. horizontal or vertical plane); a bounded portion thereof.
- Mirrors in the compartments have been canted out of the vertical plane to reduce reflections to the passengers when seated.
- 3
anatomygeometrymathematicsA flat surface extending infinitely in all directions (e.g. horizontal or vertical plane); a bounded portion thereof.
- 4
A level of existence or development.
- astral plane
- Nettie's stories about her experiences in Africa point out many parallels between the African and American ways of life. Her stories about the African lifestyle and family structure, in particular, point out the sexist and oppressive conditions that women are forced to submit to on a global plane.
- 5
A roughly flat, thin, often moveable structure used to create lateral force by the flow of air or water over its surface, found on aircraft, submarines, etc.
- 6
computingengineeringmathematicsAny of 17 designated ranges of 2¹⁶ (65,536) sequential code points each.
planenoun詞源 2/pleɪn/
- 1
businesscarpentryconstructionA tool for smoothing wood by removing thin layers from the surface.
planeverb詞源 2/pleɪn/
- 1
businesscarpentryconstructionTo smooth (wood) with a plane.
planenoun詞源 3/pleɪn/
- 1
An airplane; an aeroplane.
- on a plane
- The plane is travelling impossibly slowly – 30km an hour – when it gently noses up and leaves the ground. With air beneath them, the rangy wings seem to gain strength; the fuselage that on the ground seemed flimsy becomes elegant, like a crane vaunting in flight. It seems not to fly, though, so much as float.
- 2
biologyentomologynatural-sciencesAny of various nymphalid butterflies, of various genera, having a slow gliding flight.
- 3
biologyentomologynatural-sciencesThe butterfly Bindahara phocides, family Lycaenidae, of Asia and Australasia.
planeverb詞源 3/pleɪn/
- 1
nauticaltransportTo move in a way that lifts the bow out of the water.
- 2
To glide or soar.
planenoun詞源 4/pleɪn/
- 1
A deciduous tree of the genus Platanus.
- 2
A sycamore.
摘錄自 英文維基詞典 English Wiktionary，已精簡格式；依 CC BY-SA 4.0 授權使用，改動後的內容同樣以此授權提供。