ILS vs it's, What's the Difference?

Which to use

“ILS” is a noun and “it's” is a contraction - they look or sound alike but fill different roles in a sentence.

#39,360
“ILS” frequency rank: #55
“it's” frequency rank: 39415
confusion score

Side-by-Side Comparison

Feature	ILS	it's
Definition	Initialism of instrument landing system.	Contraction of it + is.

Letter map: ILS vs it's

Shared letters muted; letters that set ILS and it's apart highlighted. Shared run: 2.

3 ch

ILS

4 ch

it's

Spelling & Dictionary Insight

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ILS is anoun and it'sacontraction. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 39415, derived from the frequency rank of both members and their visual similarity.

ILS is recorded at frequency rank #39,360, classified as anoun. it's is at rank #55, tagged as acontraction, pronounced /ɪts/.

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 39415, this pair ranks #276,939 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ILS vs it's

Shared letters: is. Private to "ILS": l. Private to "it's": t.

"ILS" · 3 letters · shape VCC · "it's" · 3 letters · shape VCC

Frequently Asked Questions

Can "ILS" and "it's" be used interchangeably?

No - they are not even the same part of speech. "ILS" is a noun and "it's" a contraction, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "ILS" or "it's"?

"it's" is the more common of the two: it sits at frequency rank #55 in our English list, against #39,360 for "ILS". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.