infosec

noun

"infosec" is a 7-letter English headword indexed on PlainSpell.

The verdict

“infosec” is uncommon English (frequency #80,562 among 2,140 “I” headwords), classed as a noun. The kind of spelling people second-guess.

#80,562
frequency rank, English
2,140
“I” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Abbreviation of information security.

Corpus desk

Index EN-infosec · infosec · English

infosec · rank #80,562 · 0 variants · 0 confusables

  • FREQ-RARE #80,562
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 2,140
  • PHOTO-FINISH inflammable

Nearest frequency peer: inflammable (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Long-tail ranks near “infosec”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “infosec” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for infosec
PropertyValue
Headwordinfosec
LanguageEnglish
Part of speechNoun
Letters7
Frequency rank#80,562
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “infosec” in English

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).infosecfalls in this rarity band:

#1#100#1K#10K#100K
← used constantlyrarely used →

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Rare peers in the same band: “inflammable” (#80,561), “inhomogeneous” (#80,563), “indignantly” (#80,559). Among 2,140 “I” headwords, “infosec” is #80,562. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

infosec is uncommon English at frequency #80,562 among 2,140 “I” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Abbreviation of information security.".

The misspelling generator found no plausible variants for infosec, a straightforward case of a spelling with little room for common typos. This entry stands alone in our confusable dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: A contraction. The correct English form is infosec, spelled I-N-F-O-S-E-C.

Definition

  1. 1
    Abbreviation of information security.

Recorded use

Wiktionary examples

These source excerpts show how infosec appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. The plan also emphasizes technology transfer to the infosec side of NSA […]
  2. Analysis of the intersection between infosec and computer forensics.

Etymology

A contraction.

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "infosec"?
"infosec" is spelled I-N-F-O-S-E-C.
What does "infosec" mean?
As a noun, "infosec" means: Abbreviation of information security.
What is the origin of the word "infosec"?
A contraction. 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "infosec", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 7 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list