saivsSemTell them apart

Quick tell: sai is a verb, Sem is a noun, so they fill different roles in a sentence.

Which to use

“sai” is a verb and “Sem” is a noun - they look or sound alike but fill different roles in a sentence.

#47,708
“sai” frequency rank
#29,785
“Sem” frequency rank
77493
confusion score

Side-by-Side Comparison

Feature sai Sem
Definition 2. Person Singular Indikativ Präsens Aktiv des Verbs sapere kleinster, nicht weiter zerlegbarer Bestandteil der Bedeutung eines Wortes oder Morphems

Where the eye mixes sai and Sem

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. sai (CVV) and Sem (CVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

3 ch
sai
3 ch
Sem

Why the eye confuses sai with Sem

These two trip readers on the page rather than in the ear: sai is [ˈsai̯] while Sem is [zeːm]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 77493, derived from the frequency rank of both members and their visual similarity.

sai is recorded at frequency rank #47,708, classified as averb, pronounced [ˈsai̯]. Sem is at rank #29,785, tagged as anoun, pronounced [zeːm].

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 77493, this pair ranks #259,471 of 2,006,359 scored German confusable pairs - among the most confusable pairs.

Orthographic DNA of sai vs Sem

Shared letters: s. Private to "sai": ai. Private to "Sem": em.

"sai" · 3 letters · shape CVV  ·  "Sem" · 3 letters · shape CVC

Frequently Asked Questions

Do "sai" and "Sem" mean the same thing in a sentence?
No - they are not even the same part of speech. "sai" is a verb and "Sem" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "sai" or "Sem"?
"Sem" is the more common of the two: it sits at frequency rank #29,785 in our German list, against #47,708 for "sai". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "sai" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Sem" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #259,471 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "sai" and "Sem" also get mixed up with nearby pairs, the highest-scored neighbour is "sai vs seg". Nearby pair

Confusion rank #259,471 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list