Which to use
“informal” is an adjective and “informer” is a noun - they look or sound alike but fill different roles in a sentence.
- #8,682
- “informal” frequency rank
- #29,318
- “informer” frequency rank
- 38000
- confusion score
Side-by-Side Comparison
| Feature | informal | informer |
|---|---|---|
| Definition | Not formal or ceremonious. | One who informs someone else about something. |
Where the spellings diverge
Shared letters are muted; the letters that actually set informal and informer apart are highlighted. They share 6 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: informal is anadjective and informeranoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 38000, derived from the frequency rank of both members and their visual similarity.
informal is recorded at frequency rank #8,682, classified as anadj, pronounced /ɪnˈfɔɹm(ə)l/. informer is at rank #29,318, tagged as anoun.
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 38000, this pair ranks #289,700 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of informal vs informer
Shared letters: fimnor. Private to "informal": al. Private to "informer": e.
"informal" · 8 letters · shape VCCVCCVC · "informer" · 8 letters · shape VCCVCCVC
Known mistypes of this pair
Frequency comparison
Frequently Asked Questions
Can "informal" and "informer" be used interchangeably?
Which is more common, "informal" or "informer"?
Remembering informal vs informer
The fastest way to pick the right one every time.
- Check the role first: if you need an adjective, it's “informal”; for a noun, it's “informer”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “informal” entry
- Browse more pairs most likely to be confused. Most confusable