saivsSMSWhich spelling fits?

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

Which to use

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

#47,708
“sai” frequency rank
#4,558
“SMS” frequency rank
52266
confusion score

Side-by-Side Comparison

Feature sai SMS
Definition 2. Person Singular Indikativ Präsens Aktiv des Verbs sapere eine über das Mobilfunknetz durch den gleichnamigen Dienst versandte Kurznachricht

Where the eye mixes sai and SMS

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
sai
3 ch
SMS

Look-alike desk: sai vs SMS

These two trip readers on the page rather than in the ear: sai is [ˈsai̯] while SMS is [ɛsʔɛmˈʔɛs]. 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 52266, 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]. SMS is at rank #4,558, tagged as anoun, pronounced [ɛsʔɛmˈʔɛs].

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 52266, this pair ranks #1,103,529 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of sai vs SMS

Shared letters: s. Private to "sai": ai. Private to "SMS": m.

"sai" · 3 letters · shape CVV  ·  "SMS" · 3 letters · shape CCC

Frequently Asked Questions

Do "sai" and "SMS" mean the same thing in a sentence?
No - they are not even the same part of speech. "sai" is a verb and "SMS" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "sai" or "SMS" show up more?
"SMS" is the more common of the two: it sits at frequency rank #4,558 in our German list, against #47,708 for "sai". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "sai" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "SMS" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,103,529 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "sai" and "SMS" also get mixed up with nearby pairs, the highest-scored neighbour is "sai vs seg". Nearby pair

Confusion rank #1,103,529 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