ADC
"adc" is a 3-letter English headword indexed on PlainSpell.
The verdict
“ADC” sits in 20 confusable pairs (corpus #27,709) as a noun. The look-alike neighbours are the real trap.
- #27,709
- frequency rank, English
- 35,202
- “A” headwords
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Initialism of aide-de-camp and postnominal.
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | ADC |
| Language | English |
| Part of speech | Noun |
| Letters | 3 |
| Frequency rank | #27,709 |
| Misspellings tracked | 0 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Where “ADC” sits in English frequency
Easy to mix with look-alikes
The spelling risk for ADC is neighbouring look-alikes ("as", "at", …), not just typos; it is anoun. Frequency #27,709 among 35,202 “A” headwords. 8 recorded senses keep meaning in play.
No misspelling variants are generated for ADC in our index, a straightforward case of a spelling with little room for common typos. It also participates in 20 confusable-pair relationships, "as", "at", "an", and more, where similar look or sound leads writers to substitute one word for another in context.
Wiktionary doesn't record an etymology 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 ADC, spelled A-D-C.
Definition
- 1Initialism of aide-de-camp and postnominal.
- 2Initialism of analog-to-digital converter.
- 3Initialism of aid to dependent children.
- 4Abbreviation of air defense command or aerospace defense command.
- 5Abbreviation of air defense center or aerospace defense center.
- 6Initialism of antibody-drug conjugate.
- 7Initialism of automatic distance control.
- 8Initialism of after-death communication.
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
How do you spell "ADC"?
What does "ADC" mean?
What words are commonly confused with "ADC"?
What language does "ADC" come from?
Is PlainSpell free to use?
Using “ADC”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is A-D-C - every other letter order is a misspelling in standard orthography.
- Don't mix it up with “as” - see the side-by-side comparison. ADC vs as
- Browse more English words and confusable pairs in the same reference. English words
Words at a similar English frequency
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.