canis vs casi, What's the Difference?

Which to use

“canis” is a noun and “casi” is an adverb - they look or sound alike but fill different roles in a sentence.

#44,607
“canis” frequency rank: #221
“casi” frequency rank: 44828
confusion score

Side-by-Side Comparison

Feature	canis	casi
Definition	Perro, perra.	Que por poca diferencia no es, que tiene mucha semejanza.

Where the spellings diverge

Shared letters are muted; the letters that actually set canis and casi apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.

5 ch

canis

4 ch

casi

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: canis is /ˈka.nis/ while casi is [ˈkasi]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 44828, derived from the frequency rank of both members and their visual similarity.

canis is recorded at frequency rank #44,607, classified as anoun, pronounced /ˈka.nis/. casi is at rank #221, tagged as anadv, pronounced [ˈkasi].

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 44828, this pair ranks #134,890 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of canis vs casi

Shared letters: acis. Private to "canis": n. Private to "casi": -.

"canis" · 5 letters · shape CVCVC · "casi" · 4 letters · shape CVCV

Known mistypes of this pair

canis ← acnis · cains · caniss · cannis · cansi · ccanis · cnais
casi ← acsi · caci · cais · cassi · ccasi · csai

Frequency comparison

canis#44,607

casi#221

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "canis" and "casi" be used interchangeably?

No - they are not even the same part of speech. "canis" is a noun and "casi" an adverb, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "canis" or "casi"?

"casi" is the more common of the two: it sits at frequency rank #221 in our Spanish list, against #44,607 for "canis". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Remembering canis vs casi

The fastest way to pick the right one every time.

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