sonvssunkWhat's the difference?

Quick tell: son is a noun, sunk is a verb, so they fill different roles in a sentence.

Which to use

“son” is a noun and “sunk” is a verb - they look or sound alike but fill different roles in a sentence.

#534
“son” frequency rank
#10,617
“sunk” frequency rank
11151
confusion score

Side-by-Side Comparison

Feature son sunk
Definition One's male offspring. past participle of sink

Where the eye mixes son and sunk

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

3 ch
son
4 ch
sunk

Why the eye confuses son with sunk

These two trip readers on the page rather than in the ear: son is /sʌn/ while sunk is /sʌŋk/. 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 verb), which is usually the fastest check. Our composite confusion score for this pair is 11151, derived from the frequency rank of both members and their visual similarity.

son is recorded at frequency rank #534, classified as anoun, pronounced /sʌn/. sunk is at rank #10,617, tagged as averb, pronounced /sʌŋk/.

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 11151, this pair ranks #488,632 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of son vs sunk

Shared letters: ns. Private to "son": o. Private to "sunk": ku.

"son" · 3 letters · shape CVC  ·  "sunk" · 4 letters · shape CVCC

Known mistypes of this pair

  • sunksnuk · ssunk · sukn · sunkk · sunnk · usnk

Frequently Asked Questions

Is swapping "son" for "sunk" ever safe?
No - they are not even the same part of speech. "son" is a noun and "sunk" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "son" or "sunk" show up more?
"son" is the more common of the two: it sits at frequency rank #534 in our English list, against #10,617 for "sunk". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

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

  • Full dictionary entry for "son" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sunk" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #488,632 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "son" and "sunk" also get mixed up with nearby pairs, the highest-scored neighbour is "sunk vs sura". 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 #488,632 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