photometry
"photometry" is a 10-letter English headword indexed on PlainSpell.
The verdict
“photometry” is uncommon English (frequency #77,086 among 46,516 “P” headwords), classed as a noun. The kind of spelling people second-guess.
- #77,086
- frequency rank, English
- 46,516
- “P” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The measurement of various aspects of light, especially its intensity.
Corpus desk
Index EN-photometry · photometry · English
photometry · rank #77,086 · 0 variants · 0 confusables
- FREQ-RARE #77,086
- LEN-MEGA 10 letters
- VOW-4 4 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-DENSE 46,516
- PHOTO-FINISH phalanges
Nearest frequency peer: phalanges (-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.
Frequency neighbourhood for “photometry”
Lower corpus rank = more everyday usage (inverted bar length for readability)
- personalisa…
personalisation
22,918 corpus weight
- Petre
Petre
22,917 corpus weight
- phalanges
phalanges
22,916 corpus weight
- photometry
photometry
22,915 corpus weight
- phrenology
phrenology
22,914 corpus weight
- Phrygian
Phrygian
22,913 corpus weight
What this shows Bars show where “photometry” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.
| Property | Value |
|---|---|
| Headword | photometry |
| Language | English |
| Part of speech | Noun |
| Letters | 10 |
| Frequency rank | #77,086 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “photometry” sits in English frequency
Rare enough to double-check
photometry is uncommon English at frequency #77,086 among 46,516 “P” headwords, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.
We couldn't generate a plausible misspelling set for photometry, which points to an orthography that plays by predictable English rules. Our dataset records no confusable match here, since nothing in our dataset looks or sounds close enough to cause mix-ups.
Etymologically, the entry records: From photo- + -metry. The correct English form is photometry, spelled P-H-O-T-O-M-E-T-R-Y.
Definition
- 1The measurement of various aspects of light, especially its intensity.
- 2The measurement of the intensity and spectrum of light from stars.
Etymology
From photo- + -metry.
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.
PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 6, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.
Frequently Asked Questions
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "photometry", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 10 letters (nearest by frequency 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.