Ni vs nm, What's the Difference?

Which to use

“Ni” and “nm” are a confusable German pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#10,906
“Ni” frequency rank: #11,940
“nm” frequency rank: 22846
confusion score

Side-by-Side Comparison

Feature	Ni	nm
Definition	Nickel	Einheitensymbol für Nanometer. 1 nm = 10⁻⁹ m.

Letter map: Ni vs nm

Shared letters muted; letters that set Ni and nm apart highlighted. Shared run: 1.

2 ch

Pair insight - Ni / nm

Ni and nm are indexed as a confusable German pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by a single letter - i in “Ni” becomes m in “nm”. Our composite confusion score for this pair is 22846, derived from the frequency rank of both members and their visual similarity.

Ni is recorded at frequency rank #10,906, classified as anabbrev. nm is at rank #11,940, tagged as anabbrev.

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 22846, this pair ranks #1,868,985 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of Ni vs nm

Shared letters: n. Private to "Ni": i. Private to "nm": m.

"Ni" · 2 letters · shape CV · "nm" · 2 letters · shape CC

Frequently Asked Questions

Can "Ni" and "nm" be used interchangeably?

No. They differ by a single letter - i in “Ni” becomes m in “nm”, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.

Frequency check: "Ni" vs "nm" - which ranks higher?

"Ni" is the more common of the two: it sits at frequency rank #10,906 in our German list, against #11,940 for "nm". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pair "Ni" vs "nm" is on the table, pick a follow-up below.

Full dictionary entry for "Ni" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "nm" - compare definitions side by side with the headword page. Word entry
This pair ranks #1,868,985 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
"Ni" and "nm" also get mixed up with nearby pairs, the highest-scored neighbour is "nm vs nox". Nearby pair

Confusion rank #1,868,985 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.