ILSvsIsisWhat's the difference?

Quick tell: ILS is a noun, Isis is a name, so they fill different roles in a sentence.

Which to use

“ILS” is a noun and “Isis” is a name - they look or sound alike but fill different roles in a sentence.

#39,360
“ILS” frequency rank
#4,536
“Isis” frequency rank
43896
confusion score

Side-by-Side Comparison

Feature ILS Isis
Definition Initialism of instrument landing system. 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.

Letter map: ILS vs Isis

Shared letters muted; letters that set ILS and Isis apart highlighted. Shared run: 2.

3 ch
ILS
4 ch
Isis

Spelling & Dictionary Insight

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ILS is anoun and Isisaname. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 43896, derived from the frequency rank of both members and their visual similarity.

ILS is recorded at frequency rank #39,360, classified as anoun. Isis is at rank #4,536, tagged as aname, pronounced /ˈaɪ.sɪs/.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 43896, this pair ranks #235,644 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ILS vs Isis

Shared letters: is. Private to "ILS": l. Private to "Isis": -.

"ILS" · 3 letters · shape VCC  ·  "Isis" · 4 letters · shape VCVC

Known mistypes of this pair

  • Isisiiss · isiss · issi · issis · siis

Frequently Asked Questions

Can "ILS" and "Isis" be used interchangeably?
No - they are not even the same part of speech. "ILS" is a noun and "Isis" a name, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "ILS" or "Isis"?
"Isis" is the more common of the two: it sits at frequency rank #4,536 in our English list, against #39,360 for "ILS". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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

Source: FrequencyWords open word-frequency list