siglovssigmaWhat's the difference?

Which to use

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

#618
“siglo” frequency rank
#36,291
“sigma” frequency rank
36909
confusion score

Side-by-Side Comparison

Feature siglo sigma
Definition Período de cien años. Parte del intestino grueso que, en el hombre, continúa después del colon descendente, a la altura de la pelvis y es seguido por el recto. En esta parte los gases se acumulan para ser luego expulsados sin interferir con las heces.

Where the spellings diverge

Shared letters are muted; the letters that actually set siglo and sigma apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.

5 ch
siglo
5 ch
sigma

Spelling & Dictionary Insight

A purely visual mix-up. siglo ([ˈsiɣ̞lo]) and sigma ([ˈsiɣ̞ma]) 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 36909, derived from the frequency rank of both members and their visual similarity.

siglo is recorded at frequency rank #618, classified as anoun, pronounced [ˈsiɣ̞lo]. sigma is at rank #36,291, tagged as anoun, pronounced [ˈsiɣ̞ma].

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 36909, this pair ranks #178,136 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of siglo vs sigma

Shared letters: gis. Private to "siglo": lo. Private to "sigma": am.

"siglo" · 5 letters · shape CVCCV  ·  "sigma" · 5 letters · shape CVCCV

Known mistypes of this pair

  • siglociglo · isglo · sgilo · sigglo · sigllo · sigol · silgo · ssiglo
  • sigmacigma · isgma · sgima · sigam · siggma · sigmma · simga · ssigma

Frequency comparison

siglo#618
sigma#36,291

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "siglo" and "sigma" be used interchangeably?
No. They are said differently ([ˈsiɣ̞lo] versus [ˈsiɣ̞ma]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "siglo" or "sigma"?
"siglo" is the more common of the two: it sits at frequency rank #618 in our Spanish list, against #36,291 for "sigma". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Remembering siglo vs sigma

The fastest way to pick the right one every time.

  • Read both glosses above and match the meaning you intend, only context separates this pair.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “siglo” entry
  • Browse more pairs most likely to be confused. Most confusable

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list