cisvscosWhat's the difference?

Quick tell: cis is a adjective, cos is a noun, so they fill different roles in a sentence.

Which to use

“cis” is an adjective and “cos” is a noun - they look or sound alike but fill different roles in a sentence.

#20,606
“cis” frequency rank
#23,736
“cos” frequency rank
44342
confusion score

Side-by-Side Comparison

Feature cis cos
Definition Cisgénero. Cuerpo.

Where the spellings diverge

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

3 ch
cis
3 ch
cos

Spelling & Dictionary Insight

cis and cos form a confusable pair in the Spanish index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by a single letter - i in “cis” becomes o in “cos” - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 44342, derived from the frequency rank of both members and their visual similarity.

cis is recorded at frequency rank #20,606, classified as anadj, pronounced [ˈsis]. cos is at rank #23,736, tagged as anoun, pronounced [ˈkos].

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 44342, this pair ranks #137,590 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Frequency comparison

cis#20,606
cos#23,736

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "cis" and "cos" be used interchangeably?
No, "cis" and "cos" have distinct meanings and cannot be swapped without changing the meaning of a sentence. Understanding the specific definition and context for each word is essential for correct usage.

Remembering cis vs cos

The fastest way to pick the right one every time.

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

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list