slowvsslowerWhich spelling fits?

Which to use

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

#1,504
“slow” frequency rank
#7,398
“slower” frequency rank
8902
confusion score

Side-by-Side Comparison

Feature slow slower
Definition Taking a long time to move or go a short distance, or to perform an action; not quick in motion; proceeding at a low speed. comparative form of slow: more slow

Where the eye mixes slow and slower

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

4 ch
slow
6 ch
slower

Visual trap between slow and slower

A purely visual mix-up. slow (/sləʊ/) and slower (/ˈsləʊə/) 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 2 extra letter(s) - “slow” sits inside “slower”. Our composite confusion score for this pair is 8902, derived from the frequency rank of both members and their visual similarity.

slow is recorded at frequency rank #1,504, classified as anadj, pronounced /sləʊ/. slower is at rank #7,398, tagged as anadj, pronounced /ˈsləʊə/.

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 8902, this pair ranks #500,118 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of slow vs slower

Shared letters: losw. Private to "slow": -. Private to "slower": er.

"slow" · 4 letters · shape CCVC  ·  "slower" · 6 letters · shape CCVCVC

Known mistypes of this pair

  • slowlsow · sllow · sloww · slwo · solw · sslow
  • slowerlsower · sllower · sloewr · slowerr · slowre · slowwer · slwoer · solwer

Frequently Asked Questions

Do "slow" and "slower" mean the same thing in a sentence?
No. They are said differently (/sləʊ/ versus /ˈsləʊə/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary English text, does "slow" or "slower" show up more?
"slow" is the more common of the two: it sits at frequency rank #1,504 in our English list, against #7,398 for "slower". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "slow" and "slower" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "slow" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "slower" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #500,118 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "slow" and "slower" also get mixed up with nearby pairs, the highest-scored neighbour is "slower vs stover". 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 #500,118 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