nanoparticle

noun

"nanoparticle" is a 12-letter English headword indexed on PlainSpell.

The verdict

“nanoparticle” is uncommon English (frequency #53,126 among 1,534 “N” headwords), classed as a noun. The kind of spelling people second-guess.

#53,126
frequency rank, English
1,534
“N” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Any microscopic particle less than about 100 nanometers (nm) in diameter.

Corpus desk

Index EN-nanoparticle · nanoparticle · English

nanoparticle · rank #53,126 · 0 variants · 0 confusables

  • FREQ-RARE #53,126
  • LEN-MEGA 12 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 1,534
  • PHOTO-FINISH nanna

Nearest frequency peer: nanna (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Long-tail ranks near “nanoparticle”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “nanoparticle” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for nanoparticle
PropertyValue
Headwordnanoparticle
LanguageEnglish
Part of speechNoun
Letters12
Frequency rank#53,126
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “nanoparticle” in English

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).nanoparticlefalls in this rarity band:

#1#100#1K#10K#100K
← used constantlyrarely used →

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Rare peers in the same band: “nanna” (#53,125), “narcolepsy” (#53,127), “Murfreesboro” (#53,123). Among 1,534 “N” headwords, “nanoparticle” is #53,126. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

nanoparticle is uncommon English at frequency #53,126 among 1,534 “N” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Any microscopic particle less than about 100 nanometers (nm) in diameter.".

Our edit-distance generator produced no likely misspellings for nanoparticle, which points to an orthography that plays by predictable English rules. Our confusable-pair dataset has no match for it, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: From nano- + particle. The correct English form is nanoparticle, spelled N-A-N-O-P-A-R-T-I-C-L-E.

Definition

  1. 1
    Any microscopic particle less than about 100 nanometers (nm) in diameter.

Recorded use

Wiktionary examples

These source excerpts show how nanoparticle appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Nanoparticles of various sorts are already found in products like sunscreen, paint and inkjet paper. More exotic varieties offer promise in medicine for sensitive diagnostic tests and novel treatments: the detection of Alzheimer's disease by finding a protein in spinal fluid, for instance, or nanoparticles that heat up and kill cancer cells.
  2. The high surface area of a nanoparticle relative to its weight and volume makes it behave differently from larger masses of the same material.

Etymology

From nano- + particle.

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "nanoparticle"?
"nanoparticle" is spelled N-A-N-O-P-A-R-T-I-C-L-E.
What does "nanoparticle" mean?
As a noun, "nanoparticle" means: Any microscopic particle less than about 100 nanometers (nm) in diameter.
What is the origin of the word "nanoparticle"?
From nano- + particle. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "nanoparticle", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 12 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list