ACOG
/ˈeɪ.kɑɡ/
"acog" is a 4-letter English headword indexed on PlainSpell.
The verdict
“ACOG” is uncommon English (frequency #85,987 among 3,931 “A” headwords), classed as a proper noun. The kind of spelling people second-guess.
- #85,987
- frequency rank, English
- 3,931
- “A” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Acronym of American College of Obstetricians and Gynecologists.
Corpus desk
Index EN-acog · ACOG · English
ACOG · rank #85,987 · 0 variants · 0 confusables
- FREQ-RARE #85,987
- LEN-MID 4 letters
- VOW-2 2 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 3,931
- PHOTO-FINISH Acheron
Nearest frequency peer: Acheron (-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 “ACOG”
Sparse band: bars invert rank so rarer forms read shorter
- abrogate
abrogate
14,017 corpus weight
- acanthus
acanthus
14,016 corpus weight
- Acheron
Acheron
14,015 corpus weight
- ACOG
ACOG
14,014 corpus weight
- acrylate
acrylate
14,013 corpus weight
- Adders
Adders
14,012 corpus weight
What this shows Long-tail view: where “ACOG” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | ACOG |
| Language | English |
| Part of speech | Proper noun |
| IPA | /ˈeɪ.kɑɡ/ |
| Letters | 4 |
| Frequency rank | #85,987 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “ACOG” in English
Rare enough to double-check
ACOG is uncommon English at frequency #85,987 among 3,931 “A” headwords, classed as aproper noun, transcribed /ˈeɪ.kɑɡ/. Rarity is why readers land here mid-draft. 2 senses are on record.
No generated misspelling entries exist for ACOG in our index, a sign its spelling follows regular English conventions. Our confusable-pair dataset has no match for it, since no other headword is close enough in sound or shape to pair with it.
No documented word history exists for this headword, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct English form is ACOG, spelled A-C-O-G.
Definition
- 1Acronym of American College of Obstetricians and Gynecologists.
- 2Acronym of Advanced Combat Optical Gunsight.
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 "ACOG", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 4 letters (nearest by frequency rank).