firmabavsfirmarWhich spelling fits?

Which to use

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

#32,217
“firmaba” frequency rank
#4,008
“firmar” frequency rank
36225
confusion score

Side-by-Side Comparison

Feature firmaba firmar
Definition Primera persona del singular (yo) del pretérito imperfecto de indicativo de firmar o de firmarse. Poner la firma en un escrito.

Where the eye mixes firmaba and firmar

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. firmaba runs 7 letters (CVCCVCV) against firmar's 6 (CVCCVC) - the length gap alone is often enough to separate them once you know to check it.

7 ch
firmaba
6 ch
firmar

Why the eye confuses firmaba with firmar

A purely visual mix-up. firmaba ([fiɾˈmaβ̞a]) and firmar ([fiɾˈmaɾ]) 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 36225, derived from the frequency rank of both members and their visual similarity.

firmaba is recorded at frequency rank #32,217, classified as averb, pronounced [fiɾˈmaβ̞a]. firmar is at rank #4,008, tagged as averb, pronounced [fiɾˈmaɾ].

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 36225, this pair ranks #181,760 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of firmaba vs firmar

Shared letters: afimr. Private to "firmaba": b. Private to "firmar": -.

"firmaba" · 7 letters · shape CVCCVCV  ·  "firmar" · 6 letters · shape CVCCVC

Known mistypes of this pair

  • firmaba ← ffirmaba · fimraba · firamba · firmaab · firmabba · firmava · firmbaa · firmmaba
  • firmar ← ffirmar · fimrar · firamr · firmarr · firmmar · firmra · firrmar · frimar

Frequently Asked Questions

Can "firmaba" and "firmar" be used interchangeably?
No. They are said differently ([fiɾˈmaβ̞a] versus [fiɾˈmaɾ]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "firmaba" or "firmar"?
"firmar" is the more common of the two: it sits at frequency rank #4,008 in our Spanish list, against #32,217 for "firmaba". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "firmaba" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "firmar" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #181,760 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "firmaba" and "firmar" also get mixed up with nearby pairs, the highest-scored neighbour is "firmaba vs firmaría". 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 #181,760 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