USB
/ˌjuː ˌɛs ˈbiː/noun
USB is spelled U-S-B: 3 letters and 3 syllables. It appears 9.5 times per million words in written English, the 7,338th most frequent word form (wordfreq, 2021 data). As a noun, USB means “A USB flash drive” (English Wiktionary, September 2026). The plural of USB is USBs.
How many letters and syllables are in USB?
| Letters | 3: U-S-B |
|---|---|
| Syllables | 3 (from its American pronunciation) |
| In writing | 9.5 times per million words; the 7,338th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is USB?
USB appears 9.5 times per million words in written English, the 7,338th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce USB?
- /ˌjuː ˌɛs ˈbiː/
USB has 3 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-USB.wav, Wikimedia Commons (author and licence on each file's page).
Forms of USB
- USBs plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does USB mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
informalA USB flash drive.
- 2
Initialism of unified S-band (a communication system used for the Apollo program).
- 3
Initialism of upper sideband.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).