CB

adj

"cb" is a 2-letter English headword indexed on PlainSpell.

The verdict

“CB” sits in 20 confusable pairs (corpus #10,999) as an adjective. The look-alike neighbours are the real trap.

#10,999
frequency rank, English
5,599
“C” headwords
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - confined to barracks (a punishment in the army).

Corpus desk

Index EN-cb · CB · English

CB · rank #10,999 · 0 variants · 20 confusables

  • FREQ-MID #10,999
  • LEN-SHORT 2 letters
  • VOW-0 0 vowels
  • CONFUS-HIGH 20 pairs
  • VAR-0 0 variants
  • BOOK-DENSE 5,599
  • PHOTO-FINISH capt

Nearest frequency peer: capt (-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.

Frequency neighbours of confusable “CB”

Peers at similar corpus weight, separate from look-alike pairs below

corpus weight

What this shows Bars place “CB” against nearest ranked English headwords, not a reprint of the confusable-pair desk.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

CB vs co
0% similar
CB vs CD
50% similar
CB vs CM
50% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for CB
PropertyValue
HeadwordCB
LanguageEnglish
Part of speechAdjective
Letters2
Frequency rank#10,999
Misspellings tracked0
Confusable pairs20
SourceWiktionary (kaikki.org)

Corpus rank beside confusables of “CB”

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).CBlands here:

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

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “capt” (#10,998), “clarence” (#11,000), “Cambodia” (#10,997). Among 5,599 “C” headwords, “CB” is #10,999. Source: FrequencyWords open word-frequency list.

Easy to mix with look-alikes

The spelling risk for CB is neighbouring look-alikes ("co", "CD", …), not just typos; it is anadjective. Frequency #10,999 among 5,599 “C” headwords. 2 recorded senses keep meaning in play.

No generated misspelling entries exist for CB in our index, which points to an orthography that plays by predictable English rules. It also participates in 20 confusable-pair relationships, "co", "CD", "CM", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.

This entry's etymology isn't recorded, so its spelling is best read as a straightforward mapping from sound to letter. The correct English form is CB, spelled C-B.

Definition

  1. 1
    confined to barracks (a punishment in the army).
  2. 2
    Initialism of chemical and biological.

Recorded use

Wiktionary example

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

  1. ‘Twenty days C.B.,’ said one. ‘Twenty years, more likely,’ said another.

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 "CB"?
"CB" is spelled C-B.
What does "CB" mean?
As an adjective, "CB" means: confined to barracks (a punishment in the army).
What words are commonly confused with "CB"?
"CB" is commonly confused with "co", "CD", "CM". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
What language does "CB" come from?
"CB" is a English word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
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.

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

Source: FrequencyWords open word-frequency list