tacvstroWhich spelling fits?

Which to use

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

#14,971
“tac” frequency rank
#43,903
“tro” frequency rank
58874
confusion score

Side-by-Side Comparison

Feature tac tro
Definition Sonido que se repite con cierta frecuencia similar al ritmo cardiaco. Trueno.

Where the eye mixes tac and tro

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
tac
3 ch
tro

Why the eye confuses tac with tro

A purely visual mix-up. tac ([ˈt̪ak]) and tro ([ˈtɾo]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 58874, derived from the frequency rank of both members and their visual similarity.

tac is recorded at frequency rank #14,971, classified as anoun, pronounced [ˈt̪ak]. tro is at rank #43,903, tagged as anoun, pronounced [ˈtɾo].

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 58874, this pair ranks #64,819 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of tac vs tro

Shared letters: t. Private to "tac": ac. Private to "tro": or.

"tac" · 3 letters · shape CVC  ·  "tro" · 3 letters · shape CCV

Frequently Asked Questions

Do "tac" and "tro" mean the same thing in a sentence?
No. They are said differently ([ˈt̪ak] versus [ˈtɾo]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "tac" vs "tro" - which ranks higher?
"tac" is the more common of the two: it sits at frequency rank #14,971 in our Spanish list, against #43,903 for "tro". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "tac" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "tro" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #64,819 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "tac" and "tro" also get mixed up with nearby pairs, the highest-scored neighbour is "tapo vs tro". Nearby pair

Confusion rank #64,819 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