SSH vs ssi, What's the Difference?

Which to use

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

#41,017
“SSH” frequency rank: #42,065
“ssi” frequency rank: 83082
confusion score

Side-by-Side Comparison

Feature	SSH	ssi
Definition	Protocole de communication sécurisé, via les réseaux informatiques.	Abréviation de si et seulement si.

Where the spellings diverge

Shared letters are muted; the letters that actually set SSH and ssi apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.

3 ch

SSH

3 ch

ssi

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: SSH is \ɛs.ɛs.aʃ\ while ssi is \si e sœl.mɑ̃ si\. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - h in “SSH” becomes i in “ssi”, and the parts of speech differ too (noun vs conjunction), which is usually the fastest check. Our composite confusion score for this pair is 83082, derived from the frequency rank of both members and their visual similarity.

SSH is recorded at frequency rank #41,017, classified as anoun, pronounced \ɛs.ɛs.aʃ\. ssi is at rank #42,065, tagged as aconj, pronounced \si e sœl.mɑ̃ si\.

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 83082, this pair ranks #15,483 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of SSH vs ssi

Shared letters: s. Private to "SSH": h. Private to "ssi": i.

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

Frequency comparison

SSH#41,017

ssi#42,065

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "SSH" and "ssi" be used interchangeably?

No - they are not even the same part of speech. "SSH" is a noun and "ssi" a conjunction, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "SSH" or "ssi"?

"SSH" is the more common of the two: it sits at frequency rank #41,017 in our French list, against #42,065 for "ssi". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering SSH vs ssi

The fastest way to pick the right one every time.

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