slowsvsso'sTell them apart

Quick tell: slows is a verb, so's is a contraction, so they fill different roles in a sentence.

Which to use

“slows” is a verb and “so's” is a contraction - they look or sound alike but fill different roles in a sentence.

#17,491
“slows” frequency rank
#38,171
“so's” frequency rank
55662
confusion score

Side-by-Side Comparison

Feature slows so's
Definition third-person singular simple present indicative of slow So that, in order that.

Letter map: slows vs so's

Shared letters muted; letters that set slows and so's apart highlighted. Shared run: 3. slows runs 5 letters (CCVCC) against so's's 3 (CVC) - the length gap alone is often enough to separate them once you know to check it.

5 ch
slows
4 ch
so's

Grammar separator: slows vs so's

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: slows is averb and so'sacontraction. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 55662, derived from the frequency rank of both members and their visual similarity.

slows is recorded at frequency rank #17,491, classified as averb, pronounced /slaːz/. so's is at rank #38,171, tagged as acontraction.

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 55662, this pair ranks #131,936 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of slows vs so's

Shared letters: os. Private to "slows": lw. Private to "so's": -.

"slows" · 5 letters · shape CCVCC  ·  "so's" · 3 letters · shape CVC

Known mistypes of this pair

  • slowslsows · sllows · slosw · slowss · slowws · slwos · solws · sslows

Frequently Asked Questions

Is swapping "slows" for "so's" ever safe?
No - they are not even the same part of speech. "slows" is a verb and "so's" a contraction, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "slows" vs "so's" - which ranks higher?
"slows" is the more common of the two: it sits at frequency rank #17,491 in our English list, against #38,171 for "so's". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Done with this confusable. These links stay specific to "slows" and "so's".

  • Full dictionary entry for "slows" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "so's" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #131,936 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "slows" and "so's" also get mixed up with nearby pairs, the highest-scored neighbour is "so's vs suds". 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 #131,936 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