isi vs iss, What's the Difference?

Which to use

“isi” and “iss” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#49,170
“isi” frequency rank: #22,303
“iss” frequency rank: 71473
confusion score

Side-by-Side Comparison

Feature	isi	iss
Definition	Deuxième personne du singulier du futur de l’indicatif du verbe isal/isañ.	Deuxième personne du singulier de l’impératif présent de essen.

Where the spellings diverge

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

3 ch

isi

3 ch

iss

Spelling & Dictionary Insight

A purely visual mix-up. isi (\ˈisːi\) and iss (\ɪs\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by a single letter - i in “isi” becomes s in “iss”. Our composite confusion score for this pair is 71473, derived from the frequency rank of both members and their visual similarity.

isi is recorded at frequency rank #49,170, classified as averb, pronounced \ˈisːi\. iss is at rank #22,303, tagged as averb, pronounced \ɪs\.

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 71473, this pair ranks #47,444 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of isi vs iss

Shared letters: is. Private to "isi": -. Private to "iss": -.

"isi" · 3 letters · shape VCV · "iss" · 3 letters · shape VCC

Frequency comparison

isi#49,170

iss#22,303

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "isi" and "iss" be used interchangeably?

No. They are said differently (\ˈisːi\ versus \ɪs\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.

Which is more common, "isi" or "iss"?

"iss" is the more common of the two: it sits at frequency rank #22,303 in our French list, against #49,170 for "isi". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering isi vs iss

The fastest way to pick the right one every time.

Read both glosses above and match the meaning you intend, only context separates this pair.
See each word in full, definition, IPA, etymology and its other confusables. Full “isi” entry
Browse more pairs most likely to be confused. Most confusable