sinevssinkerTell them apart

Which to use

“sine” and “sinker” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#25,577
“sine” frequency rank
#46,779
“sinker” frequency rank
72356
confusion score

Side-by-Side Comparison

Feature sine sinker
Definition In a right triangle, the ratio of the length of the side opposite an angle to the length of the hypotenuse. That which sinks or descends.

Where the eye mixes sine and sinker

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. sine runs 4 letters (CVCV) against sinker's 6 (CVCCVC) - the length gap alone is often enough to separate them once you know to check it.

4 ch
sine
6 ch
sinker

Visual trap between sine and sinker

A purely visual mix-up. sine (/saɪn/) and sinker (/ˈsɪŋkə(ɹ)/) 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 2 letter(s) in length. Our composite confusion score for this pair is 72356, derived from the frequency rank of both members and their visual similarity.

sine is recorded at frequency rank #25,577, classified as anoun, pronounced /saɪn/. sinker is at rank #46,779, tagged as anoun, pronounced /ˈsɪŋkə(ɹ)/.

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 72356, this pair ranks #43,313 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of sine vs sinker

Shared letters: eins. Private to "sine": -. Private to "sinker": kr.

"sine" · 4 letters · shape CVCV  ·  "sinker" · 6 letters · shape CVCCVC

Known mistypes of this pair

  • sine ← isne · sien · sinne · snie · ssine
  • sinker ← isnker · sikner · sinekr · sinkerr · sinkker · sinkre · sinnker · sniker

Frequently Asked Questions

Is swapping "sine" for "sinker" ever safe?
No. They are said differently (/saɪn/ versus /ˈsɪŋkə(ɹ)/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "sine" vs "sinker" - which ranks higher?
"sine" is the more common of the two: it sits at frequency rank #25,577 in our English list, against #46,779 for "sinker". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "sine" and "sinker" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "sine" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sinker" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #43,313 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "sine" and "sinker" also get mixed up with nearby pairs, the highest-scored neighbour is "silken vs sinker". 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 #43,313 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list