sacsvsslabsWhat's the difference?

Which to use

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

#40,005
“sacs” frequency rank
#22,509
“slabs” frequency rank
62514
confusion score

Side-by-Side Comparison

Feature sacs slabs
Definition plural of sac plural of slab

Where the eye mixes sacs and slabs

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

4 ch
sacs
5 ch
slabs

Look-alike desk: sacs vs slabs

A purely visual mix-up. sacs (/sæks/) and slabs (/slæbz/) 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 62514, derived from the frequency rank of both members and their visual similarity.

sacs is recorded at frequency rank #40,005, classified as anoun, pronounced /sæks/. slabs is at rank #22,509, tagged as anoun, pronounced /slæbz/.

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 62514, this pair ranks #88,066 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of sacs vs slabs

Shared letters: as. Private to "sacs": c. Private to "slabs": bl.

"sacs" · 4 letters · shape CVCC  ·  "slabs" · 5 letters · shape CCVCC

Known mistypes of this pair

  • sacsascs · saccs · sacss · sasc · scas · ssacs
  • slabslsabs · salbs · slabbs · slabss · slasb · slbas · sllabs · sslabs

Frequently Asked Questions

Can "sacs" and "slabs" be used interchangeably?
No. They are said differently (/sæks/ versus /slæbz/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "sacs" or "slabs"?
"slabs" is the more common of the two: it sits at frequency rank #22,509 in our English list, against #40,005 for "sacs". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "sacs" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "slabs" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #88,066 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "sacs" and "slabs" also get mixed up with nearby pairs, the highest-scored neighbour is "sacs 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 #88,066 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