sisvsSVWhich spelling fits?

Quick tell: sis is a num, SV is an abbrev, so they fill different roles in a sentence.

Which to use

“sis” is a num and “SV” is an abbrev - they look or sound alike but fill different roles in a sentence.

#37,202
“sis” frequency rank
#2,743
“SV” frequency rank
39945
confusion score

Side-by-Side Comparison

Feature sis SV
Definition sechs (6) Sportverein

Where the eye mixes sis and SV

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

3 ch
sis
2 ch
SV

Visual trap between sis and SV

These two trip readers on the page rather than in the ear: sis is [sis] while SV is [ɛsˈfaʊ̯]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (num vs abbrev), which is usually the fastest check. Our composite confusion score for this pair is 39945, derived from the frequency rank of both members and their visual similarity.

sis is recorded at frequency rank #37,202, classified as anum, pronounced [sis]. SV is at rank #2,743, tagged as anabbrev, pronounced [ɛsˈfaʊ̯].

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 39945, this pair ranks #1,522,416 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of sis vs SV

Shared letters: s. Private to "sis": i. Private to "SV": v.

"sis" · 3 letters · shape CVC  ·  "SV" · 2 letters · shape CC

Frequently Asked Questions

Can "sis" and "SV" be used interchangeably?
No - they are not even the same part of speech. "sis" is a num and "SV" an abbrev, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "sis" vs "SV" - which ranks higher?
"SV" is the more common of the two: it sits at frequency rank #2,743 in our German list, against #37,202 for "sis". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

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

  • Full dictionary entry for "sis" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "SV" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,522,416 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "sis" and "SV" also get mixed up with nearby pairs, the highest-scored neighbour is "seg vs sis". Nearby pair

Confusion rank #1,522,416 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