cryptology

/kɹɪpˈtɒl.ə.dʒi/

//kɹɪpˈtɒl.ə.dʒi// noun

"cryptology" is a 10-letter English headword indexed on PlainSpell.

The verdict

“cryptology” is uncommon English (frequency #93,586 among 43,570 “C” headwords), classed as a noun. The kind of spelling people second-guess.

#93,586
frequency rank, English
43,570
“C” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The science or study of mathematical, linguistic, and other coding patterns and histories.

Key facts for cryptology
PropertyValue
Headwordcryptology
LanguageEnglish
Part of speechNoun
IPA/kɹɪpˈtɒl.ə.dʒi/
Letters10
Frequency rank#93,586
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “cryptology” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). cryptology lands here:

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

cryptology is uncommon English at frequency #93,586 among 43,570 “C” headwords, classed as anoun, transcribed /kɹɪpˈtɒl.ə.dʒi/. Rarity is why readers land here mid-draft. 3 senses are on record.

Zero misspellings are on record for cryptology in our index, a straightforward case of a spelling with little room for common typos. Our confusable-pair dataset has no match for it, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: From crypto- + -logy, from Ancient Greek κρυπτός (kruptós, “hidden”) + λόγος (lógos, “word”); originally after Latin cryptologia, which is apparently first recorded in an English context. The correct English form is cryptology, spelled C-R-Y-P-T-O-L-O-G-Y.

Definition

  1. 1
    The science or study of mathematical, linguistic, and other coding patterns and histories.
  2. 2
    The practice of analysing encoded messages, in order to decode them.
  3. 3
    Secret or enigmatical language.

Etymology

From crypto- + -logy, from Ancient Greek κρυπτός (kruptós, “hidden”) + λόγος (lógos, “word”); originally after Latin cryptologia, which is apparently first recorded in an English context.

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); 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 "cryptology"?
"cryptology" is spelled C-R-Y-P-T-O-L-O-G-Y. The IPA pronunciation is /kɹɪpˈtɒl.ə.dʒi/.
What does "cryptology" mean?
As a noun, "cryptology" means: The science or study of mathematical, linguistic, and other coding patterns and histories.
How do you pronounce "cryptology"?
The IPA (International Phonetic Alphabet) transcription for "cryptology" is /kɹɪpˈtɒl.ə.dʒi/. 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 "cryptology"?
From crypto- + -logy, from Ancient Greek κρυπτός (kruptós, “hidden”) + λόγος (lógos, “word”); originally after Latin cryptologia, which is apparently first recorded in an English context. 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 “cryptology”

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

  • The one correct English spelling is C-R-Y-P-T-O-L-O-G-Y - every other letter order is a misspelling in standard orthography.
  • Say it as /kɹɪpˈtɒl.ə.dʒi/ (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

Other uncommon English words near this rank

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