meson

/ˈmɛs.ɒn/

//ˈmɛs.ɒn// noun

"meson" is a 5-letter English headword indexed on PlainSpell.

The verdict

“meson” is uncommon English (frequency #80,669 among 4,057 “M” headwords), classed as a noun. The kind of spelling people second-guess.

#80,669
frequency rank, English
4,057
“M” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The mesial plane dividing the body into similar right and left halves.

Corpus desk

Index EN-meson · meson · English

meson · rank #80,669 · 0 variants · 0 confusables

  • FREQ-RARE #80,669
  • LEN-MID 5 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 4,057
  • PHOTO-FINISH Merwin

Nearest frequency peer: Merwin (-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 “meson”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for meson
PropertyValue
Headwordmeson
LanguageEnglish
Part of speechNoun
IPA/ˈmɛs.ɒn/
Letters5
Frequency rank#80,669
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “meson” in English

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).mesonfalls in this rarity band:

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

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Rare peers in the same band: “Merwin” (#80,668), “metacarpal” (#80,670), “merk” (#80,667). Among 4,057 “M” headwords, “meson” is #80,669. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

meson is uncommon English at frequency #80,669 among 4,057 “M” headwords, classed as anoun, transcribed /ˈmɛs.ɒn/. Rarity is why readers land here mid-draft. Gloss: "The mesial plane dividing the body into similar right and left halves.".

Our edit-distance generator produced no likely misspellings for meson, typically a sign the spelling maps closely to how the word sounds. This entry stands alone in our confusable dataset, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: From Ancient Greek μέσον (méson, “middle”). Doublet of medium. The correct English form is meson, spelled M-E-S-O-N.

Definition

  1. 1
    The mesial plane dividing the body into similar right and left halves.

Etymology

From Ancient Greek μέσον (méson, “middle”). Doublet of medium.

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 "meson"?
"meson" is spelled M-E-S-O-N. The IPA pronunciation is /ˈmɛs.ɒn/.
What does "meson" mean?
As a noun, "meson" means: The mesial plane dividing the body into similar right and left halves.
How do you pronounce "meson"?
The IPA (International Phonetic Alphabet) transcription for "meson" is /ˈmɛs.ɒn/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "meson"?
From Ancient Greek μέσον (méson, “middle”). Doublet of medium. 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 "meson", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 5 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list