comavsCTAWhich spelling fits?

Quick tell: coma is a noun, CTA is an abbrev, so they fill different roles in a sentence.

Which to use

“coma” is a noun and “CTA” is an abbrev - they look or sound alike but fill different roles in a sentence.

#5,703
“coma” frequency rank
#27,931
“CTA” frequency rank
33634
confusion score

Side-by-Side Comparison

Feature coma CTA
Definition Signo de puntuación que se emplea en gramática para dividir ciertas partes de la oración (las aposiciones, las cláusulas adjetivas, los elementos de las listas y las cláusulas desplazadas por hipérbaton), y en matemática para separar los decimales. Espacio aéreo cuya finalidad es prevenir la colisión entre aeronaves y acelerar el tránsito aéreo regular. El límite inferior de una zona CTA está establecido en 300m. sobre la superficie de la tierra y el límite superior en 15.000 m. A su vez se divide en: TMA y AWY.

Where the eye mixes coma and CTA

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
coma
3 ch
CTA

Look-alike desk: coma vs CTA

These two trip readers on the page rather than in the ear: coma is [ˈkoma] while CTA is [ˈt̪a]. 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 (noun vs abbrev), which is usually the fastest check. Our composite confusion score for this pair is 33634, derived from the frequency rank of both members and their visual similarity.

coma is recorded at frequency rank #5,703, classified as anoun, pronounced [ˈkoma]. CTA is at rank #27,931, tagged as anabbrev, pronounced [ˈt̪a].

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 33634, this pair ranks #195,752 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of coma vs CTA

Shared letters: ac. Private to "coma": mo. Private to "CTA": t.

"coma" · 4 letters · shape CVCV  ·  "CTA" · 3 letters · shape CCV

Known mistypes of this pair

  • comaccoma · cmoa · coam · comma · ocma

Frequently Asked Questions

Is swapping "coma" for "CTA" ever safe?
No - they are not even the same part of speech. "coma" is a noun and "CTA" an abbrev, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "coma" vs "CTA" - which ranks higher?
"coma" is the more common of the two: it sits at frequency rank #5,703 in our Spanish list, against #27,931 for "CTA". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "coma" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "CTA" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #195,752 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "coma" and "CTA" also get mixed up with nearby pairs, the highest-scored neighbour is "CTA vs cuc". 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 #195,752 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