ipsvsissConfusable pair

Quick tell: ips is a symbol, iss is a verb, so they fill different roles in a sentence.

Which to use

“ips” is a symbol and “iss” is a verb - they look or sound alike but fill different roles in a sentence.

#38,871
“ips” frequency rank
#22,303
“iss” frequency rank
61174
confusion score

Side-by-Side Comparison

Feature ips iss
Definition Unité de mesure de la fréquence d’échantillonnage d’un film : nombre d’images qui défilent par seconde. Deuxième personne du singulier de l’impératif présent de essen.

Where the eye mixes ips and iss

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

3 ch
ips
3 ch
iss

Look-alike desk: ips vs iss

These two trip readers on the page rather than in the ear: ips is \i.pe.ɛs\ while iss is \ɪs\. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - p in “ips” becomes s in “iss”, and the parts of speech differ too (symbol vs verb), which is usually the fastest check. Our composite confusion score for this pair is 61174, derived from the frequency rank of both members and their visual similarity.

ips is recorded at frequency rank #38,871, classified as asymbol, pronounced \i.pe.ɛs\. 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 61174, this pair ranks #93,700 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of ips vs iss

Shared letters: is. Private to "ips": p. Private to "iss": -.

"ips" · 3 letters · shape VCC  ·  "iss" · 3 letters · shape VCC

Frequently Asked Questions

Is swapping "ips" for "iss" ever safe?
No - they are not even the same part of speech. "ips" is a symbol and "iss" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "ips" or "iss"?
"iss" is the more common of the two: it sits at frequency rank #22,303 in our French list, against #38,871 for "ips". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "ips" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "iss" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #93,700 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "ips" and "iss" also get mixed up with nearby pairs, the highest-scored neighbour is "ips vs isi". Nearby pair

Confusion rank #93,700 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list