sowvssumTell them apart

Which to use

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

#17,722
“sow” frequency rank
#4,050
“sum” frequency rank
21772
confusion score

Side-by-Side Comparison

Feature sow sum
Definition A female pig. A quantity obtained by addition or aggregation.

Where the eye mixes sow and sum

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

3 ch
sow
3 ch
sum

Visual trap between sow and sum

A purely visual mix-up. sow (/saʊ/) and sum (/sʌm/) 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 21772, derived from the frequency rank of both members and their visual similarity.

sow is recorded at frequency rank #17,722, classified as anoun, pronounced /saʊ/. sum is at rank #4,050, tagged as anoun, pronounced /sʌm/.

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 21772, this pair ranks #421,457 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of sow vs sum

Shared letters: s. Private to "sow": ow. Private to "sum": mu.

"sow" · 3 letters · shape CVC  ·  "sum" · 3 letters · shape CVC

Frequently Asked Questions

Can "sow" and "sum" be used interchangeably?
No. They are said differently (/saʊ/ versus /sʌm/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary English text, does "sow" or "sum" show up more?
"sum" is the more common of the two: it sits at frequency rank #4,050 in our English list, against #17,722 for "sow". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "sow" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sum" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #421,457 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "sow" and "sum" also get mixed up with nearby pairs, the highest-scored neighbour is "Sif vs sow". Nearby pair

Confusion rank #421,457 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