rastervsriserTell them apart

Which to use

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

#46,719
“raster” frequency rank
#33,827
“riser” frequency rank
80546
confusion score

Side-by-Side Comparison

Feature raster riser
Definition 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. Someone or something which rises.

Where the eye mixes raster and riser

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

6 ch
raster
5 ch
riser

Look-alike desk: raster vs riser

A purely visual mix-up. raster (/ˈɹæstɚ/) and riser (/ˈɹaɪ.zə(ɹ)/) 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 80546, derived from the frequency rank of both members and their visual similarity.

raster is recorded at frequency rank #46,719, classified as anoun, pronounced /ˈɹæstɚ/. riser is at rank #33,827, tagged as anoun, pronounced /ˈɹaɪ.zə(ɹ)/.

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 80546, this pair ranks #19,577 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of raster vs riser

Shared letters: ers. Private to "raster": at. Private to "riser": i.

"raster" · 6 letters · shape CVCCVC  ·  "riser" · 5 letters · shape CVCVC

Known mistypes of this pair

  • rasterarster · rasetr · rasster · rasterr · rastre · rastter · ratser · rraster
  • riserirser · riesr · riserr · risre · risser · rriser · rsier

Frequently Asked Questions

Can "raster" and "riser" be used interchangeably?
No. They are said differently (/ˈɹæstɚ/ versus /ˈɹaɪ.zə(ɹ)/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "raster" vs "riser" - which ranks higher?
"riser" is the more common of the two: it sits at frequency rank #33,827 in our English list, against #46,719 for "raster". 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 "raster" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "riser" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #19,577 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "raster" and "riser" also get mixed up with nearby pairs, the highest-scored neighbour is "rafter vs raster". 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 #19,577 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