K7vskiWhich spelling fits?

Quick tell: K7 is a abbrev, ki is a noun, so they fill different roles in a sentence.

Which to use

“K7” is an abbrev and “ki” is a noun - they look or sound alike but fill different roles in a sentence.

#42,522
“K7” frequency rank
#10,029
“ki” frequency rank
52551
confusion score

Side-by-Side Comparison

Feature K7 ki
Definition cassete cão (mamífero domesticado - Canis lupus familiaris)

Where the eye mixes K7 and ki

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

2 ch
K7
2 ch
ki

Look-alike desk: K7 vs ki

These two trip readers on the page rather than in the ear: K7 is /ka.sɛt/ while ki is /ˈkiː/. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - 7 in “K7” becomes i in “ki”, and the parts of speech differ too (abbrev vs noun), which is usually the fastest check. Our composite confusion score for this pair is 52551, derived from the frequency rank of both members and their visual similarity.

K7 is recorded at frequency rank #42,522, classified as anabbrev, pronounced /ka.sɛt/. ki is at rank #10,029, tagged as anoun, pronounced /ˈkiː/.

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 52551, this pair ranks #12,684 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of K7 vs ki

Shared letters: k. Private to "K7": -. Private to "ki": i.

"K7" · 1 letters · shape C  ·  "ki" · 2 letters · shape CV

Frequently Asked Questions

Is swapping "K7" for "ki" ever safe?
No - they are not even the same part of speech. "K7" is an abbrev and "ki" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "K7" or "ki"?
"ki" is the more common of the two: it sits at frequency rank #10,029 in our Portuguese list, against #42,522 for "K7". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "K7" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ki" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #12,684 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "K7" and "ki" also get mixed up with nearby pairs, the highest-scored neighbour is "K7 vs kde". Nearby pair

Confusion rank #12,684 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list