- 1/ˈvælɪd/有效性、正當性；(文件)效期
Validity means how true, correct, or acceptable something is, based on facts or rules. In an argument, validity is about whether the logic makes sense — a valid argument follows correctly from its starting points, even if those starting points could still be wrong. For documents, validity means whether something can still legally be used — 'the validity of your passport' means whether it can still be used, or whether it has expired. In research, validity means whether a test actually measures what it claims to measure.
示範例句 · Example
Your return ticket is valid for three months.
逐字你的回程票是有效的，為期三個月。
常見搭配
valid for (three months / a year)
有效期為（三個月／一年）
able to be used during a stated period of time
The tourist visa is valid for three months.
a valid passport / licence
有效的護照／執照
an official document that has not run out
You must show a valid driving licence at the desk.
no longer valid
已經失效
not accepted any more because the time has ended
Tickets bought last year are no longer valid.
remain valid
持續有效
to continue being officially accepted
The agreement remains valid until both sides sign a new one.
core核心畫面
組成valid (able to be accepted, correct) + -ity (the state of)
原始詞典資料4 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。
validitynoun/vəˈlɪd.ɪ.ti/
- 1
The state of being valid, authentic or genuine.
- As we saw, there are strong suggestions in Marx's works that truth should be understood as meaning 'validity' in relation to human needs.
- 2
State of having legal force.
- 3
A quality of a measurement indicating the degree to which the measure reflects the underlying construct, that is, whether it measures what it purports to measure (see reliability).
- 4
ChristianitylifestylereligionThe genuinity, as distinguished from the efficacity or the regularity, of a sacrament as a result of some formal dispositions being fulfilled.
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。