metrology

/mɛtˈɹɒl.ə.d͡ʒɪ/

//mɛtˈɹɒl.ə.d͡ʒɪ// noun

By · According to Wiktionary data (CC BY-SA) ·

"metrology" is a 9-letter English headword indexed on PlainSpell.

The verdict

“metrology” is uncommon English (frequency #53,100 among 36,575 “M” headwords), classed as a noun. The kind of spelling people second-guess.

#53,100
frequency rank, English
36,575
“M” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The science of weights and measures or of measurement.

Key facts for metrology
PropertyValue
Headwordmetrology
LanguageEnglish
Part of speechNoun
IPA/mɛtˈɹɒl.ə.d͡ʒɪ/
Letters9
Frequency rank#53,100
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “metrology” sits in English frequency

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

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

metrology is uncommon English at frequency #53,100 among 36,575 “M” headwords, classed as anoun, transcribed /mɛtˈɹɒl.ə.d͡ʒɪ/. Rarity is why readers land here mid-draft. 2 senses are on record.

metrology has no tracked misspelling variants, and the word's spelling is regular enough that our generator found nothing worth flagging. No close-neighbour confusable shows up for this headword in our dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: From Ancient Greek μέτρον (métron, “measure”) + -logy. The correct English form is metrology, spelled M-E-T-R-O-L-O-G-Y.

Definition

  1. 1
    The science of weights and measures or of measurement.
  2. 2
    A system of weights and measures.

Etymology

From Ancient Greek μέτρον (métron, “measure”) + -logy.

This word in other languages

metrología(Español)métrologie(Français)Metrologie(Deutsch)metrologia(Português)

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 "metrology"?
"metrology" is spelled M-E-T-R-O-L-O-G-Y. The IPA pronunciation is /mɛtˈɹɒl.ə.d͡ʒɪ/.
What does "metrology" mean?
As a noun, "metrology" means: The science of weights and measures or of measurement.
How do you pronounce "metrology"?
The IPA (International Phonetic Alphabet) transcription for "metrology" is /mɛtˈɹɒl.ə.d͡ʒɪ/. 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 "metrology"?
From Ancient Greek μέτρον (métron, “measure”) + -logy. 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.

Using “metrology”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is M-E-T-R-O-L-O-G-Y - every other letter order is a misspelling in standard orthography.
  • Say it as /mɛtˈɹɒl.ə.d͡ʒɪ/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more English words and confusable pairs in the same reference. English words

Other uncommon English words near this rank

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list