complementanvscomplementarTell them apart

Which to use

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

#24,790
“complementan” frequency rank
#17,918
“complementar” frequency rank
42708
confusion score

Side-by-Side Comparison

Feature complementan complementar
Definition Tercera persona del plural (ellos, ellas; ustedes, 2.ª persona) del presente de indicativo de complementar o de complementarse. Agregar uno o más complementos, completar algo.

Where the eye mixes complementan and complementar

Muted = shared; highlighted = the visual trap. They share 11 letters in sequence.

12 ch
complementan
12 ch
complementar

Visual trap between complementan and complementar

A purely visual mix-up. complementan ([kõmpleˈmẽn̪t̪ãn]) and complementar ([kõmplemẽn̪ˈt̪aɾ]) 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 a single letter - n in “complementan” becomes r in “complementar”. Our composite confusion score for this pair is 42708, derived from the frequency rank of both members and their visual similarity.

complementan is recorded at frequency rank #24,790, classified as averb, pronounced [kõmpleˈmẽn̪t̪ãn]. complementar is at rank #17,918, tagged as averb, pronounced [kõmplemẽn̪ˈt̪aɾ].

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 42708, this pair ranks #146,726 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of complementan vs complementar

Shared letters: acelmnopt. Private to "complementan": -. Private to "complementar": r.

"complementan" · 12 letters · shape CVCCCVCVCCVC  ·  "complementar" · 12 letters · shape CVCCCVCVCCVC

Known mistypes of this pair

  • complementanccomplementan · cmoplementan · comlpementan · commplementan · compelmentan · compleemntan · complemenatn · complemenntan
  • complementarccomplementar · cmoplementar · comlpementar · commplementar · compelmentar · compleemntar · complemenatr · complemenntar

Frequently Asked Questions

Can "complementan" and "complementar" be used interchangeably?
No. They are said differently ([kõmpleˈmẽn̪t̪ãn] versus [kõmplemẽn̪ˈt̪aɾ]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Spanish text, does "complementan" or "complementar" show up more?
"complementar" is the more common of the two: it sits at frequency rank #17,918 in our Spanish list, against #24,790 for "complementan". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Eye-level mix-up between "complementan" and "complementar" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "complementan" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "complementar" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #146,726 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "complementan" and "complementar" also get mixed up with nearby pairs, the highest-scored neighbour is "complementado vs complementan". 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 #146,726 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