SachsvssaisTell them apart

Quick tell: Sachs is a name, sais is a noun, so they fill different roles in a sentence.

Which to use

“Sachs” is a name and “sais” is a noun - they look or sound alike but fill different roles in a sentence.

#16,580
“Sachs” frequency rank
#44,467
“sais” frequency rank
61047
confusion score

Side-by-Side Comparison

Feature Sachs sais
Definition A surname from German [in turn originating as an ethnonym]. A groom, or servant with responsibility for the horses.

Letter map: Sachs vs sais

Shared letters muted; letters that set Sachs and sais apart highlighted. Shared run: 3. Sachs runs 5 letters (CVCCC) against sais's 4 (CVVC) - the length gap alone is often enough to separate them once you know to check it.

5 ch
Sachs
4 ch
sais

Role in the sentence - Sachs and sais

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Sachs is aname and saisanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 61047, derived from the frequency rank of both members and their visual similarity.

Sachs is recorded at frequency rank #16,580, classified as aname. sais is at rank #44,467, tagged as anoun, pronounced /saɪs/.

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 61047, this pair ranks #96,635 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of Sachs vs sais

Shared letters: as. Private to "Sachs": ch. Private to "sais": i.

"Sachs" · 5 letters · shape CVCCC  ·  "sais" · 4 letters · shape CVVC

Known mistypes of this pair

  • Sachs ← aschs · sacchs · sachhs · sachss · sacsh · sahcs · scahs · ssachs
  • sais ← asis · saiss · sasi · sias · ssais

Frequently Asked Questions

Is swapping "Sachs" for "sais" ever safe?
No - they are not even the same part of speech. "Sachs" is a name and "sais" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "Sachs" or "sais"?
"Sachs" is the more common of the two: it sits at frequency rank #16,580 in our English list, against #44,467 for "sais". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pair "Sachs" vs "sais" is on the table, pick a follow-up below.

  • Full dictionary entry for "Sachs" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sais" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #96,635 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Sachs" and "sais" also get mixed up with nearby pairs, the highest-scored neighbour is "sais 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 #96,635 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