Isis

/ˈaɪ.sɪs/

//ˈaɪ.sɪs// name

By · According to Wiktionary data (CC BY-SA) ·

"isis" is a 4-letter English headword indexed on PlainSpell.

The verdict

“Isis” is a regularly-used English word, ranked #4,536 in English word frequency and used as a proper noun.

#4,536
frequency rank, English
4
letters
5
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - An ancient Egyptian goddess, the wife of Osiris and mother of Horus, worshiped as the ideal mother and wife and as the matron of nature and magic; also worshiped by (some) Greeks during the Helleni...

Visual similarity to commonly confused words

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

Isis vs its
25% similar
Isis vs iso
25% similar
Isis vs ISS
25% similar

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

Key facts for Isis
PropertyValue
HeadwordIsis
LanguageEnglish
Part of speechProper noun
IPA/ˈaɪ.sɪs/
Letters4
Frequency rank#4,536
Misspellings tracked5
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “Isis” 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). Isis 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 Isis is 4 letters long, classified as a proper noun, and transcribed in the International Phonetic Alphabet as /ˈaɪ.sɪs/. Corpus data places it at rank #4,536 in overall English word frequency, indicating it appears regularly in written and spoken text. Wiktionary records 3 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 5 likely wrong-spelling variants for Isis, with forms such as "iiss", "isiss", and "issi". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 20 confusable-pair relationships, "its", "iso", "ISS", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: Learned borrowing from Latin Īsis from Ancient Greek Ἶσις (Îsis), from Egyptian st-t:H8-B1 (ꜣst). The correct English form is Isis, spelled I-S-I-S.

Definition

  1. 1
    An ancient Egyptian goddess, the wife of Osiris and mother of Horus, worshiped as the ideal mother and wife and as the matron of nature and magic; also worshiped by (some) Greeks during the Hellenistic period and featured in Greek mythology, and by Romans involved in what was categorized as the Cult of Isis.
  2. 2
    42 Isis, a main belt asteroid.
  3. 3
    A female given name from Egyptian or Ancient Greek.

Etymology

Learned borrowing from Latin Īsis from Ancient Greek Ἶσις (Îsis), from Egyptian st-t:H8-B1 (ꜣst).

Synonyms

42 Isis㊷

This word in other languages

Isis(Français)Isis(Deutsch)

Common misspellings

Also misspelled as: iiss,isiss,issi,issis,siis

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of Isis - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

iiss2isiss1issi2issis1siis2
Edit distance from "Isis"

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 "Isis"?
"Isis" is spelled I-S-I-S. The IPA pronunciation is /ˈaɪ.sɪs/.
What does "Isis" mean?
As a proper noun, "Isis" means: An ancient Egyptian goddess, the wife of Osiris and mother of Horus, worshiped as the ideal mother and wife and as the matron of nature and magic; also worshiped by (some) Greeks during the Helleni...
What words are commonly confused with "Isis"?
"Isis" is commonly confused with "its", "iso", "ISS". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "Isis"?
The IPA (International Phonetic Alphabet) transcription for "Isis" is /ˈaɪ.sɪs/. 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 "Isis"?
Learned borrowing from Latin Īsis from Ancient Greek Ἶσις (Îsis), from Egyptian st-t:H8-B1 (ꜣst). 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 “Isis”

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

  • The one correct English spelling is I-S-I-S - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈaɪ.sɪs/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “its” - see the side-by-side comparison. Isis vs its
  • 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