sistemavssisterTell them apart

Which to use

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

#220
“sistema” frequency rank
#36,296
“sister” frequency rank
36516
confusion score

Side-by-Side Comparison

Feature sistema sister
Definition Conjunto de reglas, principios, ideas o cosas, que están unidas por un criterio común y tienen una finalidad determinada. Hermana.

Where the eye mixes sistema and sister

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

7 ch
sistema
6 ch
sister

Look-alike desk: sistema vs sister

A purely visual mix-up. sistema ([sisˈt̪ema]) and sister (/ˈsɪs.tə/) 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 36516, derived from the frequency rank of both members and their visual similarity.

sistema is recorded at frequency rank #220, classified as anoun, pronounced [sisˈt̪ema]. sister is at rank #36,296, tagged as anoun, pronounced /ˈsɪs.tə/.

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 36516, this pair ranks #180,229 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of sistema vs sister

Shared letters: eist. Private to "sistema": am. Private to "sister": r.

"sistema" · 7 letters · shape CVCCVCV  ·  "sister" · 6 letters · shape CVCCVC

Known mistypes of this pair

  • sistema ← cistema · isstema · sisetma · sisstema · sisteam · sistemma · sistmea · sisttema
  • sister ← cister · isster · sisetr · sisster · sisterr · sistre · sistter · sitser

Frequently Asked Questions

Do "sistema" and "sister" mean the same thing in a sentence?
No. They are said differently ([sisˈt̪ema] versus /ˈsɪs.tə/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Spanish text, does "sistema" or "sister" show up more?
"sistema" is the more common of the two: it sits at frequency rank #220 in our Spanish list, against #36,296 for "sister". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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 "sistema" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sister" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #180,229 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "sistema" and "sister" also get mixed up with nearby pairs, the highest-scored neighbour is "singer vs sister". 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 #180,229 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