The word "Wi-Fi" is a play on words with hi-fi, and was invented to replace the name "IEEE 802.11b Direct Sequence Spread Spectrum".
ð ə WORD_BOUNDARY w ɜː d WORD_BOUNDARY w aɪ f aɪ WORD_BOUNDARY ɪ z WORD_BOUNDARY ʌ WORD_BOUNDARY p l eɪ WORD_BOUNDARY ɔ n WORD_BOUNDARY w ɜː d z WORD_BOUNDARY w ɪ ð WORD_BOUNDARY h aɪ f aɪ WORD_BOUNDARY æ n d WORD_BOUNDARY w ʌ z WORD_BOUNDARY ɪ n v ɛ n t ɪ d WORD_BOUNDARY t ə WORD_BOUNDARY ɹ ɪ p l eɪ s WORD_BOUNDARY ð ə WORD_BOUNDARY n eɪ m WORD_BOUNDARY aɪ iː iː iː WORD_BOUNDARY eɪ t h ʌ n d ɹ ɪ d WORD_BOUNDARY t uː WORD_BOUNDARY ɪ l ɛ v ə n WORD_BOUNDARY b iː WORD_BOUNDARY d ɪ ɹ ɛ k t WORD_BOUNDARY s iː k w ə n s WORD_BOUNDARY s p ɹ ɛ d WORD_BOUNDARY s p ɛ k t ɹ ə m WORD_BOUNDARY