IJ vs inc, What's the Difference?

Which to use

“IJ” is a name and “inc” is a verb - they look or sound alike but fill different roles in a sentence.

#46,535
“IJ” frequency rank: #1,760
“inc” frequency rank: 48295
confusion score

Side-by-Side Comparison

Feature	IJ	inc
Definition	A lake (formerly a bay) adjoining the city of Amsterdam, Netherlands.	Abbreviation of increase.

Letter map: IJ vs inc

Shared letters muted; letters that set IJ and inc apart highlighted. Shared run: 1.

2 ch

3 ch

inc

Role in the sentence - IJ and inc

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: IJ is aname and incaverb. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 48295, derived from the frequency rank of both members and their visual similarity.

IJ is recorded at frequency rank #46,535, classified as aname, pronounced /eɪ/. inc is at rank #1,760, tagged as averb.

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 48295, this pair ranks #194,473 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of IJ vs inc

Shared letters: i. Private to "IJ": j. Private to "inc": cn.

"IJ" · 2 letters · shape VC · "inc" · 3 letters · shape VCC

Frequently Asked Questions

Can "IJ" and "inc" be used interchangeably?

No - they are not even the same part of speech. "IJ" is a name and "inc" a verb, so a sentence built for one is usually ungrammatical with the other.

In ordinary English text, does "IJ" or "inc" show up more?

"inc" is the more common of the two: it sits at frequency rank #1,760 in our English list, against #46,535 for "IJ". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Pair "IJ" vs "inc" is on the table, pick a follow-up below.

Full dictionary entry for "IJ" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "inc" - compare definitions side by side with the headword page. Word entry
This pair ranks #194,473 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"IJ" and "inc" also get mixed up with nearby pairs, the highest-scored neighbour is "IJ vs ith". Nearby pair

Confusion rank #194,473 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.