SGR
"sgr" is a 3-letter English headword indexed on PlainSpell.
The verdict
“SGR” is uncommon English (frequency #76,322 among 6,566 “S” headwords), classed as a noun. The kind of spelling people second-guess.
- #76,322
- frequency rank, English
- 6,566
- “S” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Initialism of soft gamma-ray repeater or soft gamma repeater.
Corpus desk
Index EN-sgr · SGR · English
SGR · rank #76,322 · 0 variants · 0 confusables
- FREQ-RARE #76,322
- LEN-MID 3 letters
- VOW-0 0 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-DENSE 6,566
- PHOTO-FINISH shallowness
Nearest frequency peer: shallowness (+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 “SGR”
Sparse band: bars invert rank so rarer forms read shorter
- sexualizati…
sexualization
23,682 corpus weight
- SGR
SGR
23,679 corpus weight
- shallowness
shallowness
23,678 corpus weight
- shayla
shayla
23,676 corpus weight
- Sheedy
Sheedy
23,675 corpus weight
- sheeps
sheeps
23,674 corpus weight
What this shows Long-tail view: where “SGR” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | SGR |
| Language | English |
| Part of speech | Noun |
| Letters | 3 |
| Frequency rank | #76,322 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “SGR” in English
Rare enough to double-check
SGR is uncommon English at frequency #76,322 among 6,566 “S” 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 SGR, since its letter pattern doesn't lend itself to common typo substitutions. This headword has no recorded confusable partner, since no other headword is close enough in sound or shape to pair with it.
No documented word history exists for this headword, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct English form is SGR, spelled S-G-R.
Definition
- 1Initialism of soft gamma-ray repeater or soft gamma repeater.
- 2Initialism of standard gauge railway.
Recorded use
Wiktionary examplesThese source excerpts show how SGR appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
The expected gamma-ray spectrum of the Soft Gamma-ray Repeater SGR 1900+14 for various inclination angles.
Other missing neutron stars might be the unpredictable soft gamma-ray repeaters (SGRs), the recurrent soft X-ray transients discovered in the 1980s. Although there are only a few examples known at present, SGRs have attracted a lot of attention lately because of their unique characteristics.
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 "SGR", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 3 letters (nearest by frequency rank).