identifier

noun

iden·​ti·​fi·​er ī-ˈden-tə-ˌfī(-ə)r 

ə-

: one that identifies

Examples of identifier in a Sentence

Recent Examples on the Web

The app then references the identifier to help the user detect exactly which model is nearby, and my brother-in-law confirmed that Zuckoff correctly labeled his smart glasses. — Ashley Belanger, ArsTechnica, 21 Aug. 2026

Anyone with information for coroner investigators can contact 408-793-1903, and reference the case number 97-165-004 or the cite UP127425, the man’s identifier in the National Missing and Unidentified Persons System. — Robert Salonga, Mercury News, 20 Aug. 2026

To get bin and lot numbers baked into 2D barcodes, a unique label may need to be printed on site, or packages with those identifiers would need to be pre-printed and shipped to particular locations. — David Goldman, CNN Money, 18 Aug. 2026

Federal privacy guidance does not define identifying information only as your name, Social Security number or another obvious identifier. — Kurt Knutsson, FOXNews.com, 18 Aug. 2026

Word History

First Known Use

1807, in the meaning defined above

Rhymes for identifier

• amplifier
• clarifier
• classifier
• gasifier
• magnifier
• modifier
• multiplier
• occupier
• pacifier
• purifier
• qualifier
• quantifier