isolator
"isolator" is a 8-letter English headword indexed on PlainSpell.
The verdict
“isolator” is uncommon English (frequency #88,476 among 17,902 “I” headwords), classed as a noun. The kind of spelling people second-guess.
- #88,476
- frequency rank, English
- 17,902
- “I” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - An electrical device that detects short circuits and isolates them.
Corpus desk
Index EN-isolator · isolator · English
isolator · rank #88,476 · 0 variants · 0 confusables
- FREQ-RARE #88,476
- LEN-LONG 8 letters
- VOW-4 4 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-DENSE 17,902
- PHOTO-FINISH Jacobian
Nearest frequency peer: Jacobian (+2 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 “isolator”
Lower corpus rank = more everyday usage (inverted bar length for readability)
- involution
involution
11,530 corpus weight
- isolator
isolator
11,525 corpus weight
- Jacobian
Jacobian
11,523 corpus weight
- jailor
jailor
11,522 corpus weight
- Jair
Jair
11,521 corpus weight
- Jairus
Jairus
11,520 corpus weight
What this shows Bars show where “isolator” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.
| Property | Value |
|---|---|
| Headword | isolator |
| Language | English |
| Part of speech | Noun |
| Letters | 8 |
| Frequency rank | #88,476 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “isolator” sits in English frequency
Rare enough to double-check
isolator is uncommon English at frequency #88,476 among 17,902 “I” headwords, classed as anoun. Rarity is why readers land here mid-draft. 3 senses are on record.
No generated misspelling entries exist for isolator in our index, 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, which typically means the spelling is too distinctive to be mistaken for another word.
Etymologically, the entry records: From isolate + -or. The correct English form is isolator, spelled I-S-O-L-A-T-O-R.
Definition
- 1An electrical device that detects short circuits and isolates them.
- 2A device that isolates something from the surrounding environment to keep it sterile.
- 3A transparent box for holding small live animals.
Etymology
From isolate + -or.
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
How do you spell "isolator"?
What does "isolator" mean?
What is the origin of the word "isolator"?
Is PlainSpell free to use?
Similar English words by spelling shape
Same letter count and similar misspelling depth for "isolator", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 8 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.