cierrovsciertosWhat's the difference?

Quick tell: cierro is a verb, ciertos is an adjective, so they fill different roles in a sentence.

Which to use

“cierro” is a verb and “ciertos” is an adjective - they look or sound alike but fill different roles in a sentence.

#17,070
“cierro” frequency rank
#2,071
“ciertos” frequency rank
19141
confusion score

Side-by-Side Comparison

Feature cierro ciertos
Definition Primera persona del singular (yo) del presente de indicativo de cerrar o de cerrarse. Forma del plural de cierto.

Where the spellings diverge

Shared letters are muted; the letters that actually set cierro and ciertos apart are highlighted. They share 5 letters in sequence, which is exactly why the eye skips the difference.

6 ch
cierro
7 ch
ciertos

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: cierro is [ˈsjero] while ciertos is [ˈsjeɾt̪os]. 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 (verb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 19141, derived from the frequency rank of both members and their visual similarity.

cierro is recorded at frequency rank #17,070, classified as averb, pronounced [ˈsjero]. ciertos is at rank #2,071, tagged as anadj, pronounced [ˈsjeɾt̪os].

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 19141, this pair ranks #265,024 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of cierro vs ciertos

Shared letters: ceior. Private to "cierro": -. Private to "ciertos": st.

"cierro" · 6 letters · shape CVVCCV  ·  "ciertos" · 7 letters · shape CVVCCVC

Known mistypes of this pair

  • cierroccierro · ceirro · ciero · cieror · cirero · icerro · sierro
  • ciertoscciertos · ceirtos · cierots · cierrtos · ciertoss · ciertso · cierttos · cietros

Frequency comparison

cierro#17,070
ciertos#2,071

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "cierro" and "ciertos" be used interchangeably?
No - they are not even the same part of speech. "cierro" is a verb and "ciertos" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "cierro" or "ciertos"?
"ciertos" is the more common of the two: it sits at frequency rank #2,071 in our Spanish list, against #17,070 for "cierro". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering cierro vs ciertos

The fastest way to pick the right one every time.

  • Check the role first: if you need a verb, it's “cierro”; for an adjective, it's “ciertos”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “cierro” 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