有用的東西（具體）
把「有用」從抽象的性質，落到具體、真的在替你做事的東西上——那些安靜地供你使用、少了就不方便的服務或工具。
utility (public service) · noun · B2
A basic service such as gas, water, or electricity that is provided to homes and buildings.
水電瓦斯
核心畫面
Think of it as how much real use you can get out of something — the practical good it does for you. Everything the word points to circles back to this one question: is it useful, and how useful?
可以想成一個很實際的問題：這個東西到底能派上多少用場？utility 講的就是這種「有沒有用、有多好用」的份量，其他…更多收起
可以想成一個很實際的問題：這個東西到底能派上多少用場？utility 講的就是這種「有沒有用、有多好用」的份量，其他用法都是從這裡長出來的。From the word’s history
From Latin utilis 'usable, useful', from uti 'to make use of, profit by' — the word is built straight on the idea of putting something to use.
來自拉丁文 utilis（可用的、有用的），再往上是 uti（去使用、去得到好處）。所以這個字從骨子裡就在講「拿來用、用得上」這件事。
etymonline.com/word/utility
From the picture
Also in this word
utility, usefulness · noun · C1
The quality of being useful, or the amount of use something has.
實用性／效用
原始詞典資料13 筆記錄
以下是外部詞典記錄的用法，原文照列，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。
utilitynoun/juːˈtɪlɪti/
- 1
The state or condition of being useful; usefulness.
- "The profession has its utility, but I should be sorry to see any friend of mine belonging to it."
- 2
Something that is useful.
- Undoubtedly it can be said that the humble 0-6-0 has been the backbone for general service, or general utility on British railways right from their earliest days, and is likely to remain so.
- 3
economicssciencesThe ability of a commodity to satisfy needs or wants; the satisfaction experienced by the consumer of that commodity.
- 4
human-sciencesphilosophysciencesWell-being, satisfaction, pleasure, or happiness.
- 5
businessA commodity or service provided on a continuous basis by a physical infrastructure network, such as electricity, water supply or sewerage.
- The complex includes the usual utilities (gas and electricity) and amenities like wifi and a gym (toilets with toiletries).
- Elsewhere, utility diversion works are still scheduled to continue, with work to move a gas main on Drummond Street set to begin in early 2025.
- 6
businessfinanceA natural or legal monopoly distributer of such a utility; or, the securities of such a provider.
- 7
computingengineeringmathematicsA software program other than a game; one that is useful or creative rather than merely entertaining.
- a graphics utility; a music utility
- 8
computingengineeringmathematicsA software program designed to perform a single task or a small range of tasks, often to help manage and tune computer hardware, an operating system, or application software.
- Holonyms: app, application, program
- I've bought a new disk utility that can recover deleted files.
另外 2 個記錄的用法
- 9
hobbieslifestylesportsThe ability to play multiple positions.
- 10
A coupé utility, or ute; an automobile with an open tray or bed behind the passenger cabin.
- Tim Archer got into the utility and drove[.] The car was a 1946 Chevrolet, somewhat battered by four years of station use, a sturdy practical vehicle with a coupé front seat and an open truck body behind.
utilityadj/juːˈtɪlɪti/
- 1
Having to do with, or owned by, a service provider.
- utility line; utility bill
- 2
containing or intended for any of a building’s often-utility-related commodity transport, such as pipes or wires, or converting equipment, such as furnaces, water tanks or heaters, circuit breakers, central air conditioning units, laundry facilities, etc.
- utility room; utility corridor
- 3
Functional rather than attractive.
- "Chocolate and cream," the standard colours of G.W.R. rolling stock for 21 years, are now being replaced by an all-over utility coating of reddish-brown. This is the third time that a uniform brown has been adopted as the standard livery of G.W.R. carriages.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。