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. |
Letter map: informal vs informer
Shared letters muted; letters that set informal and informer apart highlighted. Shared run: 6. informal and informer follow the identical consonant-vowel pattern (VCCVCCVC). Same shape at a glance is often the real trap, independent of shared letters.
Grammar separator: informal vs informer
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
Frequently Asked Questions
Do "informal" and "informer" mean the same thing in a sentence?
Frequency check: "informal" vs "informer" - which ranks higher?
What to do next
Done with this confusable. These links stay specific to "informal" and "informer".
- Full dictionary entry for "informal" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "informer" - compare definitions side by side with the headword page. Word entry
- This pair ranks #289,700 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "informal" and "informer" also get mixed up with nearby pairs, the highest-scored neighbour is "infernal vs informal". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #289,700 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.