Which to use
“rafter” and “raster” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #49,579
- “rafter” frequency rank
- #46,719
- “raster” frequency rank
- 96298
- confusion score
Side-by-Side Comparison
| Feature | rafter | raster |
|---|---|---|
| Definition | One of a series of sloped beams that extend from the ridge or hip to the downslope perimeter or eave, designed to support the roof deck and its associated loads. | A scanning pattern of parallel lines that form the display of an image projected on a cathode-ray tube of a television set or display screen. |
Where the eye mixes rafter and raster
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. rafter and raster follow the identical consonant-vowel pattern (CVCCVC). Same shape at a glance is often the real trap, independent of shared letters.
Why the eye confuses rafter with raster
A purely visual mix-up. rafter (/ˈɹɑːftə(ɹ)/) and raster (/ˈɹæstɚ/) 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 a single letter - f in “rafter” becomes s in “raster”. Our composite confusion score for this pair is 96298, derived from the frequency rank of both members and their visual similarity.
rafter is recorded at frequency rank #49,579, classified as anoun, pronounced /ˈɹɑːftə(ɹ)/. raster is at rank #46,719, tagged as anoun, pronounced /ˈɹæstɚ/.
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 96298, this pair ranks #599 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of rafter vs raster
Shared letters: aert. Private to "rafter": f. Private to "raster": s.
"rafter" · 6 letters · shape CVCCVC · "raster" · 6 letters · shape CVCCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "rafter" for "raster" ever safe?
Which is more common, "rafter" or "raster"?
What to do next
Eye-level mix-up between "rafter" and "raster" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "rafter" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "raster" - compare definitions side by side with the headword page. Word entry
- This pair ranks #599 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "rafter" and "raster" also get mixed up with nearby pairs, the highest-scored neighbour is "rafter vs rapier". 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 #599 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.