noun · verb · 7 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
/ˈwaɪ.faɪ/
US:Recorded audio is listed in the source snapshot.
Philippines:/ˈwaɪ.faɪ/
Philippines:/ˈwaɪ.paɪ/
rhymes with -aɪfaɪ
CMU ARPABET:W AY1 F AY2
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
Any of several standards for short-range wireless data transmission (IEEE 802.11).
Definition source: English Wiktionary via Wiktextract
Definition source: English Wiktionary via Wiktextract
Usage: informal, uncountable
Examples
The refrigerator cost 1000 more dollars just because it had Wi-Fi, and I'm thinking "this is ridiculous"!
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 4
A Wi-Fi network.
Definition source: English Wiktionary via Wiktextract
Usage: countable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
5
noun
Meaning 5
Alternative spelling of Wi-Fi.
Definition source: English Wiktionary via Wiktextract
Usage: alt-of, alternative, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
6
verb
Meaning 6
To equip with Wi-Fi; to Wi-Fi enable.
Definition source: English Wiktionary via Wiktextract
Usage: transitive
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
7
verb
Meaning 7
To connect to the Internet using Wi-Fi.
Definition source: English Wiktionary via Wiktextract
Usage: transitive
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
History
Etymology
Coined in analogy to Hi-Fi as a trade name developed for the Wireless Ethernet Compatibility Alliance (later Wi-Fi Alliance). Often analyzed as a shortened form of wireless fidelity (similar to how hi-fi is short for high fidelity); this is possibly due to the former slogan of the aforementioned Wi-Fi Alliance, The Standard for Wireless Fidelity.
Across languages
Translations
51 source translations are retained for this English entry.
Arabic:
وَاي فَاي
(wāy fāy)
— computing: wireless data communication standard
Bulgarian:
безжи́чен и́нтернет
(bezžíčen ínternet)
— computing: wireless data communication standard
Catalan:
wifi
— computing: wireless data communication standard
Chinese Cantonese:
WiFi (waai1 faai1)
— computing: wireless data communication standard
Chinese Mandarin:
無線熱點 /无线热点
(wúxiàn rèdiǎn)
— computing: wireless data communication standard
Chinese Mandarin:
無線網絡 /无线网络
(wúxiàn wǎngluò)
— computing: wireless data communication standard
Chinese Mandarin:
無線網路 /无线网路
(wúxiàn wǎnglù)
— computing: wireless data communication standard
Chinese Mandarin:
WiFi (wāifài)
— computing: wireless data communication standard
Chinese Mandarin:
歪ㄈㄞˋ
(wāifài)
— computing: wireless data communication standard
Czech:
bezdrátové připojení
— computing: wireless data communication standard
Czech:
Wi-Fi
— computing: wireless data communication standard
Dutch:
Wi-Fi
— computing: wireless data communication standard
Dutch:
draadloos internet
— computing: wireless data communication standard
Dutch:
wifi
— computing: wireless data communication standard
Esperanto:
sendrata Interreto
— computing: wireless data communication standard
Esperanto:
vifio
— computing: wireless data communication standard
Finnish:
Wi-Fi
— computing: wireless data communication standard
Finnish:
langaton verkko
— computing: wireless data communication standard
French:
Wi-Fi
— computing: wireless data communication standard
French:
connexion sans fil
— computing: wireless data communication standard
Galician:
wifi
— computing: wireless data communication standard
German:
WLAN
— computing: wireless data communication standard
German:
Wi-Fi
— computing: wireless data communication standard
German:
kabellose Netzverbindung
— computing: wireless data communication standard
Hindi:
वाई-फ़ाई
(vāī-fāī)
— computing: wireless data communication standard
Italian:
wi-fi
— computing: wireless data communication standard
Japanese:
Wi-Fi
— computing: wireless data communication standard
Japanese:
ワイファイ
(waifai)
— computing: wireless data communication standard
Khmer:
វ៉ាយហ្វាយ
(vaayfaay)
— computing: wireless data communication standard
Korean:
와이파이
(waipai)
— computing: wireless data communication standard
Latin:
vi-fi
— computing: wireless data communication standard
Latin:
cōnexiō computātrī sine fīlīs
— computing: wireless data communication standard
Marathi:
वाय-फाय
(vāy-phāy)
— computing: wireless data communication standard
Persian:
وای-فای
(vây-fây)
— computing: wireless data communication standard
Polish:
wi-fi
— computing: wireless data communication standard
Portuguese:
Wi-Fi
— computing: wireless data communication standard
Portuguese:
conexão sem fio
— computing: wireless data communication standard
Portuguese:
conexão sem fios
— computing: wireless data communication standard
Russian:
вай-фа́й
(vaj-fáj)
— computing: wireless data communication standard
Russian:
беспроводна́я сеть
(besprovodnája setʹ)
— computing: wireless data communication standard
Spanish:
wifi
— computing: wireless data communication standard
Swedish:
Wi-Fi
— computing: wireless data communication standard
Tamil:
அருகலை
(arukalai)
— computing: wireless data communication standard
Thai:
ไวไฟ
(wai-fai)
— computing: wireless data communication standard
Thai:
วายฟาย
— computing: wireless data communication standard
Turkish:
kablosuz ağ
— computing: wireless data communication standard
Turkish:
kablosuz ağ bağlantısı
— computing: wireless data communication standard
Ukrainian:
вай-фай
(vaj-faj)
— computing: wireless data communication standard
Ukrainian:
вайфа́й
(vajfáj)
— computing: wireless data communication standard
Urdu:
وائی فائی
(wā'ī fā'ī)
— computing: wireless data communication standard
Yiddish:
ווײַ־פֿײַ
(vay-fay)
— computing: wireless data communication standard