Which to use
“flack” is a verb and “frock” is a noun - they look or sound alike but fill different roles in a sentence.
- #30,799
- “flack” frequency rank
- #33,656
- “frock” frequency rank
- 64455
- confusion score
Side-by-Side Comparison
| Feature | flack | frock |
|---|---|---|
| Definition | To flutter; palpitate. | A dress, a piece of clothing, which consists of a skirt and a cover for the upper body. |
Where the spellings diverge
Shared letters are muted; the letters that actually set flack and frock apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
These two trip readers on the page rather than in the ear: flack is /flæk/ while frock is /fɹɒk/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 64455, derived from the frequency rank of both members and their visual similarity.
flack is recorded at frequency rank #30,799, classified as averb, pronounced /flæk/. frock is at rank #33,656, tagged as anoun, pronounced /fɹɒk/.
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 64455, this pair ranks #77,618 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of flack vs frock
Shared letters: cfk. Private to "flack": al. Private to "frock": or.
"flack" · 5 letters · shape CCVCC · "frock" · 5 letters · shape CCVCC
Known mistypes of this pair
Frequency comparison
Frequently Asked Questions
Can "flack" and "frock" be used interchangeably?
Which is more common, "flack" or "frock"?
Remembering flack vs frock
The fastest way to pick the right one every time.
- Check the role first: if you need a verb, it's “flack”; for a noun, it's “frock”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “flack” entry
- Browse more pairs most likely to be confused. Most confusable