identification
UK/ai.dentifi'keiʃәn/US
IELTSTOEFLB2
Definitions
n.
The act of recognizing or establishing who or what something is.
识别；鉴定；确认。
n.
An official document proving who someone is.
身份证明（文件）。
Root Breakdown
Root-derivedidenti (same) + fic (weakened fac, 'make') + -ation (act of) = 'the act of making (something) match.' To identify is to 'make identical' — to match an unknown thing to a known one. Identification is that matching, or the document used to prove it.
Root identic still carries 5 more wordsUsage Guide
In everyday speech this long word is usually clipped to 'ID' (show some ID, an ID card). Use the full identification in formal or written contexts; use ID in conversation.
Example Sentences
- 1.
Please bring photo identification to the exam.
- 2.
Quick identification of the problem saved time.
- 3.
Positive identification of the victim took several days.