headersvsheaterWhat's the difference?

Which to use

“headers” and “heater” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#24,779
“headers” frequency rank
#13,928
“heater” frequency rank
38707
confusion score

Side-by-Side Comparison

Feature headers heater
Definition plural of header A device that produces and radiates heat, typically to raise the temperature of a room or building.

Where the eye mixes headers and heater

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.

7 ch
headers
6 ch
heater

Visual trap between headers and heater

A purely visual mix-up. headers (/ˈhɛ.dəz/) and heater (/ˈhitɚ/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 38707, derived from the frequency rank of both members and their visual similarity.

headers is recorded at frequency rank #24,779, classified as anoun, pronounced /ˈhɛ.dəz/. 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 38707, this pair ranks #283,522 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of headers vs heater

Shared letters: aehr. Private to "headers": ds. Private to "heater": t.

"headers" · 7 letters · shape CVVCVCC  ·  "heater" · 6 letters · shape CVVCVC

Known mistypes of this pair

  • headersehaders · haeders · headders · headerrs · headerss · headesr · headres · heaedrs
  • heaterehater · haeter · heaetr · heaterr · heatre · heatter · hetaer · hheater

Frequently Asked Questions

Do "headers" and "heater" mean the same thing in a sentence?
No. They are said differently (/ˈhɛ.dəz/ versus /ˈhitɚ/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "headers" or "heater"?
"heater" is the more common of the two: it sits at frequency rank #13,928 in our English list, against #24,779 for "headers". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "headers" 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 #283,522 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "headers" and "heater" also get mixed up with nearby pairs, the highest-scored neighbour is "headers vs herder". 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 #283,522 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list