You can think of accuracy as the gap between where you aim and where you land — the smaller the gap, the higher the accuracy. Picture an archer whose arrows keep landing dead on the bullseye: no drift, no mistakes, exactly on target. That 'hitting the mark cleanly' feeling stretches from actions to facts.
From the word’s history
From Latin accuratus 'prepared with care, exact', past participle of accurare 'to take care of' (ad- 'to' + curare, from cura 'care'). The root idea is that exactness is what you get by doing something carefully — care first, precision as its result.
來自拉丁文 accuratus（用心準備的、精確的），是 accurare（用心處理）的過去分詞；accurare 由 ad-（朝向）＋ curare 組成，而 curare 來自 cura（照料、用心）。字根的想法是：精確是「用心做」換來的結果——先有用心，才有準確。
etymonline.com/word/accuracy (Latin accuratus, from cura 'care')
原始詞典資料2 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。
accuracynoun/ˈak.jʊ.ɹə.si/
- 1
The state of being accurate; being free from error; exactness; correctness
- Its professed end [of logic], is to teach men to think, to judge, and to reason, with precision and accuracy.
- The efficiency of the instrument will also depend upon the accuracy with which the piston fits the bottom and sides of the barrel. When the piston is depressed to the bottom, it is considered in theory to be in absolute contact, so as to exclude every particle of air from the space between it and the bottom.
- 2
Exact conformity to truth, or to a rule or model; degree of conformity of a measure to a true or standard value.
- The jury doubted the accuracy of the witness' comments.
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。