decimal

/ˈdɛs.ɪ.məɫ/

//ˈdɛs.ɪ.məɫ// adj

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

The verdict

“decimal” is a moderately-common English word, ranked #20,086 in English word frequency and used as an adjective.

#20,086
frequency rank, English
7
letters
10
tracked misspellings
4
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Concerning numbers expressed in decimal or mathematical calculations performed using decimal.

Visual similarity to commonly confused words

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

decimal vs denial
71% similar
decimal vs dermal
71% similar
decimal vs decal
71% similar

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

Key facts for decimal
PropertyValue
Headworddecimal
LanguageEnglish
Part of speechAdjective
IPA/ˈdɛs.ɪ.məɫ/
Letters7
Frequency rank#20,086
Misspellings tracked10
Confusable pairs4
SourceWiktionary (kaikki.org)

Where “decimal” 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). decimal lands here:

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

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

Spelling & Dictionary Insight

The English entry for decimal is 7 letters long, classified as an adjective, and transcribed in the International Phonetic Alphabet as /ˈdɛs.ɪ.məɫ/. Corpus data places it at rank #20,086 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "Concerning numbers expressed in decimal or mathematical calculations performed using decimal.".

Our generated misspelling index lists 10 likely wrong-spelling variants for decimal, with forms such as "dceimal", "ddecimal", and "deccimal". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 4 confusable-pair relationships, "denial", "dermal", "decal", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: Borrowed from Late Latin, Medieval Latin decimalis, from Latin decimus, from decem (“ten”) + adjective suffix -alis. The correct English form is decimal, spelled D-E-C-I-M-A-L.

Definition

  1. 1
    Concerning numbers expressed in decimal or mathematical calculations performed using decimal.

Etymology

Borrowed from Late Latin, Medieval Latin decimalis, from Latin decimus, from decem (“ten”) + adjective suffix -alis.

Synonyms

base-tendenary

This word in other languages

Common misspellings

Also misspelled as: dceimal,ddecimal,deccimal,deciaml,decimall,decimla,decimmal,decmial,deicmal,edcimal

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of decimal - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

dceimal2ddecimal1deccimal1deciaml2decimall1decimla2decimmal1decmial2
Edit distance from "decimal"

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 "decimal"?
"decimal" is spelled D-E-C-I-M-A-L. The IPA pronunciation is /ˈdɛs.ɪ.məɫ/.
What does "decimal" mean?
As an adjective, "decimal" means: Concerning numbers expressed in decimal or mathematical calculations performed using decimal.
What words are commonly confused with "decimal"?
"decimal" is commonly confused with "denial", "dermal", "decal". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "decimal"?
The IPA (International Phonetic Alphabet) transcription for "decimal" is /ˈdɛs.ɪ.məɫ/. 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 "decimal"?
Borrowed from Late Latin, Medieval Latin decimalis, from Latin decimus, from decem (“ten”) + adjective suffix -alis. 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 “decimal”

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

  • The one correct English spelling is D-E-C-I-M-A-L - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈdɛs.ɪ.məɫ/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “denial” - see the side-by-side comparison. decimal vs denial
  • 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