ADCvsatWhat's the difference?

Quick tell: ADC is a noun, at is a preposition, so they fill different roles in a sentence.

Which to use

“ADC” is a noun and “at” is a preposition - they look or sound alike but fill different roles in a sentence.

#27,709
“ADC” frequency rank
#21
“at” frequency rank
27730
confusion score

Side-by-Side Comparison

Feature ADC at
Definition Initialism of aide-de-camp and postnominal. In, near, or in the general vicinity of (a particular place).

Where the spellings diverge

Shared letters are muted; the letters that actually set ADC and at apart are highlighted. They share 1 letter in sequence, which is exactly why the eye skips the difference.

3 ch
ADC
2 ch
at

Spelling & Dictionary Insight

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ADC is anoun and atapreposition. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 27730, derived from the frequency rank of both members and their visual similarity.

ADC is recorded at frequency rank #27,709, classified as anoun. at is at rank #21, tagged as aprep, pronounced /æt/.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 27730, this pair ranks #376,557 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ADC vs at

Shared letters: a. Private to "ADC": cd. Private to "at": t.

"ADC" · 3 letters · shape VCC  ·  "at" · 2 letters · shape VC

Frequency comparison

ADC#27,709
at#21

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "ADC" and "at" be used interchangeably?
No - they are not even the same part of speech. "ADC" is a noun and "at" a preposition, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "ADC" or "at"?
"at" is the more common of the two: it sits at frequency rank #21 in our English list, against #27,709 for "ADC". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Remembering ADC vs at

The fastest way to pick the right one every time.

  • Check the role first: if you need a noun, it's “ADC”; for a preposition, it's “at”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “ADC” entry
  • Browse more pairs most likely to be confused. Most confusable

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list