Which to use
“idly” is an adverb and “ILS” is a noun - they look or sound alike but fill different roles in a sentence.
- #31,612
- “idly” frequency rank
- #39,360
- “ILS” frequency rank
- 70972
- confusion score
Side-by-Side Comparison
| Feature | idly | ILS |
|---|---|---|
| Definition | Without specific purpose, intent or effort. | Initialism of instrument landing system. |
Where the spellings diverge
Shared letters are muted; the letters that actually set idly and ILS apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: idly is anadverb and ILSanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 70972, derived from the frequency rank of both members and their visual similarity.
idly is recorded at frequency rank #31,612, classified as anadv, pronounced /ˈaɪd(ə)lɪ/. ILS is at rank #39,360, tagged as anoun.
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 70972, this pair ranks #48,511 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of idly vs ILS
Shared letters: il. Private to "idly": dy. Private to "ILS": s.
"idly" · 4 letters · shape VCCV · "ILS" · 3 letters · shape VCC
Known mistypes of this pair
- idly ← dily · iddly · idlly · idlyy · idyl · ildy
Frequency comparison
Frequently Asked Questions
Can "idly" and "ILS" be used interchangeably?
Which is more common, "idly" or "ILS"?
Remembering idly vs ILS
The fastest way to pick the right one every time.
- Check the role first: if you need an adverb, it's “idly”; for a noun, it's “ILS”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “idly” entry
- Browse more pairs most likely to be confused. Most confusable