Wi-Fin.

Brit.

/ˈwʌɪˌfʌɪ/, U.S.

/ˈwaɪˌfaɪ/

Forms: also with lower-case initials.

Origin: Formed within English, by compounding. Etymons: wireless adj., English -fi.

Etymology: < wi- (in wireless adj.) + -fi, arbitrary second element, probably chosen for euphony and perhaps after the second syllable of hi-fi n.Subsequent rationalization of this word as a shortening of wireless fidelity is spurious.

Any of several standards for the high-speed wireless transmission of data over a relatively short distance. Hence: a facility allowing computers, smartphones, and other devices to access the internet or communicate with one another wirelessly within a particular area by means of one of these standards. Frequently attributive.Wi-Fi is a certification mark, meaning that its use in commerce certifies that goods manufactured by authorized persons comply with interoperability standards.

ΚΠ

1999 Business Wire (Nexis) 15 Sept. The Wireless Ethernet Compatibility Alliance..unveiled Wi-Fi, the new consumer brand identity for the IEEE 802.11 High Rate (HR) Standard.

2001 New Media Age (Nexis) 4 Oct. 22 When mobile operators and others start deploying technologies like Bluetooth and wireless LANs (dubbed ‘wi-fi’).

2002 Guardian 29 Aug. (Online section) 7/3 The range of a typical Wi-Fi network is generally too limited to be of much use when travelling around a city.

2008 D. Silverman Running Windows on your Mac xiv. 216 If you're on a notebook and connecting to, say, a public Wi-Fi hotspot, you can choose a setting with tighter security.

2014 Times 3 June (Raconteur section) 15/1 In 2012 the company announced plans to become a digital retailer, introducing an online catalogue and introducing web browsers and free wi-fi in its stores.

This entry has been updated (OED Third Edition, June 2016; most recently modified version published online December 2021).

单词	wi-fi
释义	Wi-Fin. Brit. /ˈwʌɪˌfʌɪ/, U.S. /ˈwaɪˌfaɪ/ Forms: also with lower-case initials. Origin: Formed within English, by compounding. Etymons: wireless adj., English -fi. Etymology: < wi- (in wireless adj.) + -fi, arbitrary second element, probably chosen for euphony and perhaps after the second syllable of hi-fi n.Subsequent rationalization of this word as a shortening of wireless fidelity is spurious. Any of several standards for the high-speed wireless transmission of data over a relatively short distance. Hence: a facility allowing computers, smartphones, and other devices to access the internet or communicate with one another wirelessly within a particular area by means of one of these standards. Frequently attributive.Wi-Fi is a certification mark, meaning that its use in commerce certifies that goods manufactured by authorized persons comply with interoperability standards. ΚΠ 1999 Business Wire (Nexis) 15 Sept. The Wireless Ethernet Compatibility Alliance..unveiled Wi-Fi, the new consumer brand identity for the IEEE 802.11 High Rate (HR) Standard. 2001 New Media Age (Nexis) 4 Oct. 22 When mobile operators and others start deploying technologies like Bluetooth and wireless LANs (dubbed ‘wi-fi’). 2002 Guardian 29 Aug. (Online section) 7/3 The range of a typical Wi-Fi network is generally too limited to be of much use when travelling around a city. 2008 D. Silverman Running Windows on your Mac xiv. 216 If you're on a notebook and connecting to, say, a public Wi-Fi hotspot, you can choose a setting with tighter security. 2014 Times 3 June (Raconteur section) 15/1 In 2012 the company announced plans to become a digital retailer, introducing an online catalogue and introducing web browsers and free wi-fi in its stores. This entry has been updated (OED Third Edition, June 2016; most recently modified version published online December 2021). < n.1999
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