cyber-

/ˈsaɪbə/

//ˈsaɪbə// prefix

"cyber" is a 5-letter English headword indexed on PlainSpell.

The verdict

“cyber-” is uncommon English (outside the top frequency list), classed as a prefix. The kind of spelling people second-guess.

Unranked
below top-frequency English
6
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Relating to the Internet or cyberspace, or to computers more generally.

Key facts for cyber-
PropertyValue
Headwordcyber-
LanguageEnglish
Part of speechPrefix
IPA/ˈsaɪbə/
Letters6
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “cyber-” sits in English frequency

cyber- falls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

cyber- is uncommon English outside the top frequency list, classed as aprefix, transcribed /ˈsaɪbə/. Rarity is why readers land here mid-draft. Gloss: "Relating to the Internet or cyberspace, or to computers more generally.".

The misspelling generator found no plausible variants for cyber-, a straightforward case of a spelling with little room for common typos. No close-neighbour confusable shows up for this headword in our dataset, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From cybernetic. The correct English form is cyber-, spelled C-Y-B-E-R--.

Definition

  1. 1
    Relating to the Internet or cyberspace, or to computers more generally.

Etymology

From cybernetic.

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "cyber-"?
"cyber-" is spelled C-Y-B-E-R--. The IPA pronunciation is /ˈsaɪbə/.
What does "cyber-" mean?
As a prefix, "cyber-" means: Relating to the Internet or cyberspace, or to computers more generally.
How do you pronounce "cyber-"?
The IPA (International Phonetic Alphabet) transcription for "cyber-" is /ˈsaɪbə/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "cyber-"?
From cybernetic. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “cyber-”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is C-Y-B-E-R-- - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈsaɪbə/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more English words and confusable pairs in the same reference. English words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list