ssivsSTLWhat's the difference?

Quick tell: ssi is a conjunction, STL is a noun, so they fill different roles in a sentence.

Which to use

“ssi” is a conjunction and “STL” is a noun - they look or sound alike but fill different roles in a sentence.

#42,065
“ssi” frequency rank
#48,211
“STL” frequency rank
90276
confusion score

Side-by-Side Comparison

Feature ssi STL
Definition Abréviation de si et seulement si. Une des huit séries du baccalauréat technologique, couvrant deux années de préparation avant le baccalauréat.

Where the spellings diverge

Shared letters are muted; the letters that actually set ssi and STL apart are highlighted. They share 1 letter in sequence, which is exactly why the eye skips the difference.

3 ch
ssi
3 ch
STL

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: ssi is \si e sœl.mɑ̃ si\ while STL is \ɛs.te.ɛl\. 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 (conjunction vs noun), which is usually the fastest check. Our composite confusion score for this pair is 90276, derived from the frequency rank of both members and their visual similarity.

ssi is recorded at frequency rank #42,065, classified as aconj, pronounced \si e sœl.mɑ̃ si\. STL is at rank #48,211, tagged as anoun, pronounced \ɛs.te.ɛl\.

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 90276, this pair ranks #4,949 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of ssi vs STL

Shared letters: s. Private to "ssi": i. Private to "STL": lt.

"ssi" · 3 letters · shape CCV  ·  "STL" · 3 letters · shape CCC

Frequency comparison

ssi#42,065
STL#48,211

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "ssi" and "STL" be used interchangeably?
No - they are not even the same part of speech. "ssi" is a conjunction and "STL" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "ssi" or "STL"?
"ssi" is the more common of the two: it sits at frequency rank #42,065 in our French list, against #48,211 for "STL". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering ssi vs STL

The fastest way to pick the right one every time.

  • Check the role first: if you need a conjunction, it's “ssi”; for a noun, it's “STL”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “ssi” entry
  • Browse more pairs most likely to be confused. Most confusable

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list