sixvsskyTell them apart

Which to use

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

#20,832
“six” frequency rank
#12,058
“sky” frequency rank
32890
confusion score

Side-by-Side Comparison

Feature six sky
Definition Palabra clave radiofónica del ICAO y NATO para la cifra 6. Nube.

Where the eye mixes six and sky

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

3 ch
six
3 ch
sky

Look-alike desk: six vs sky

A purely visual mix-up. six ([ˈsɪks]) and sky ([sgyːʔ]) 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 32890, derived from the frequency rank of both members and their visual similarity.

six is recorded at frequency rank #20,832, classified as anoun, pronounced [ˈsɪks]. sky is at rank #12,058, tagged as anoun, pronounced [sgyːʔ].

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 32890, this pair ranks #199,656 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of six vs sky

Shared letters: s. Private to "six": ix. Private to "sky": ky.

"six" · 3 letters · shape CVC  ·  "sky" · 3 letters · shape CCV

Frequently Asked Questions

Can "six" and "sky" be used interchangeably?
No. They are said differently ([ˈsɪks] versus [sgyːʔ]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "six" or "sky"?
"sky" is the more common of the two: it sits at frequency rank #12,058 in our Spanish list, against #20,832 for "six". 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 "six" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sky" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #199,656 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "six" and "sky" also get mixed up with nearby pairs, the highest-scored neighbour is "sila vs six". Nearby pair

Confusion rank #199,656 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