tercavstercerConfusable pair

Which to use

“terca” and “tercer” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#42,175
“terca” frequency rank
#1,428
“tercer” frequency rank
43603
confusion score

Side-by-Side Comparison

Feature terca tercer
Definition Forma del femenino singular de terco. Variante de tercero (que ocupa el lugar tres en una serie, inmediatamente después del segundo elemento).

Where the eye mixes terca and tercer

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

5 ch
terca
6 ch
tercer

Look-alike desk: terca vs tercer

A purely visual mix-up. terca ([ˈt̪eɾka]) and tercer ([t̪eɾˈseɾ]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 43603, derived from the frequency rank of both members and their visual similarity.

terca is recorded at frequency rank #42,175, classified as anadj, pronounced [ˈt̪eɾka]. tercer is at rank #1,428, tagged as anadj, pronounced [t̪eɾˈseɾ].

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 43603, this pair ranks #141,768 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of terca vs tercer

Shared letters: cert. Private to "terca": a. Private to "tercer": -.

"terca" · 5 letters · shape CVCCV  ·  "tercer" · 6 letters · shape CVCCVC

Known mistypes of this pair

  • tercaetrca · tecra · terac · tercca · terrca · treca · tterca
  • terceretrcer · tecrer · terccer · tercerr · tercre · terecr · terrcer · terser

Frequently Asked Questions

Is swapping "terca" for "tercer" ever safe?
No. They are said differently ([ˈt̪eɾka] versus [t̪eɾˈseɾ]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Spanish text, does "terca" or "tercer" show up more?
"tercer" is the more common of the two: it sits at frequency rank #1,428 in our Spanish list, against #42,175 for "terca". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

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

  • Full dictionary entry for "terca" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "tercer" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #141,768 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "terca" and "tercer" also get mixed up with nearby pairs, the highest-scored neighbour is "terca vs tercos". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #141,768 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list