bandgap
"bandgap" is a 7-letter English headword indexed on PlainSpell.
The verdict
“bandgap” is uncommon English (frequency #85,017 among 4,121 “B” headwords), classed as a noun. The kind of spelling people second-guess.
- #85,017
- frequency rank, English
- 4,121
- “B” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The energy difference between two allowed ranges of electron energy in a solid; especially the difference between the energies of the valence band and the conduction band.
Corpus desk
Index EN-bandgap · bandgap · English
bandgap · rank #85,017 · 0 variants · 0 confusables
- FREQ-RARE #85,017
- LEN-LONG 7 letters
- VOW-2 2 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 4,121
- PHOTO-FINISH Baltistan
Nearest frequency peer: Baltistan (-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 “bandgap”
Sparse band: bars invert rank so rarer forms read shorter
- Baltistan
Baltistan
14,985 corpus weight
- bandgap
bandgap
14,984 corpus weight
- barger
barger
14,982 corpus weight
- Barolo
Barolo
14,981 corpus weight
- barrette
barrette
14,980 corpus weight
- Batam
Batam
14,977 corpus weight
What this shows Long-tail view: where “bandgap” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | bandgap |
| Language | English |
| Part of speech | Noun |
| Letters | 7 |
| Frequency rank | #85,017 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “bandgap” in English
Rare enough to double-check
bandgap is uncommon English at frequency #85,017 among 4,121 “B” headwords, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.
bandgap has no tracked misspelling variants, a straightforward case of a spelling with little room for common typos. It is not paired with a close-neighbour confusable in our dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.
Etymologically, the entry records: From band + gap. The correct English form is bandgap, spelled B-A-N-D-G-A-P.
Definition
- 1The energy difference between two allowed ranges of electron energy in a solid; especially the difference between the energies of the valence band and the conduction band.
- 2A gap in a frequency range in which waves cannot propagate.
Recorded use
Wiktionary examplesThese source excerpts show how bandgap appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
The problem has been the lack of what is known as a bandgap. Semiconductors have bands of higher and lower energies and a point – the bandgap – at which excited electrons can hop from one to the other. This effectively allows switching on and off of the flow of current, so it is either conducting or not conducting, creating the binary system of zeroes and…
The propagation of an acoustic wave inside a phononic crystal is forbidden in the bandgap frequency range due to Bragg scattering.
Etymology
From band + gap.
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
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "bandgap", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 7 letters (nearest by frequency rank).