Which to use
“headed” is an adjective and “heater” is a noun - they look or sound alike but fill different roles in a sentence.
- #2,736
- “headed” frequency rank
- #13,928
- “heater” frequency rank
- 16664
- confusion score
Side-by-Side Comparison
| Feature | headed | heater |
|---|---|---|
| Definition | Of a sheet of paper: having the sender's name, address, etc. preprinted at the top. | A device that produces and radiates heat, typically to raise the temperature of a room or building. |
Where the eye mixes headed and heater
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Look-alike desk: headed vs heater
These two trip readers on the page rather than in the ear: headed is /ˈhɛdɪd/ while heater is /ˈhitɚ/. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 16664, derived from the frequency rank of both members and their visual similarity.
headed is recorded at frequency rank #2,736, classified as anadj, pronounced /ˈhɛdɪd/. heater is at rank #13,928, tagged as anoun, pronounced /ˈhitɚ/.
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 16664, this pair ranks #456,332 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of headed vs heater
Shared letters: aeh. Private to "headed": d. Private to "heater": rt.
"headed" · 6 letters · shape CVVCVC · "heater" · 6 letters · shape CVVCVC
Known mistypes of this pair
Frequently Asked Questions
Can "headed" and "heater" be used interchangeably?
In ordinary English text, does "headed" or "heater" show up more?
Useful next steps
Eye-level mix-up between "headed" and "heater" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "headed" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "heater" - compare definitions side by side with the headword page. Word entry
- This pair ranks #456,332 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "headed" and "heater" also get mixed up with nearby pairs, the highest-scored neighbour is "Heaney vs heater". 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 #456,332 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.