sowvsSTDTell them apart

Which to use

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

#17,722
“sow” frequency rank
#16,797
“STD” frequency rank
34519
confusion score

Side-by-Side Comparison

Feature sow STD
Definition A female pig. Initialism of sexually transmitted disease.

Letter map: sow vs STD

Shared letters muted; letters that set sow and STD apart highlighted. Shared run: 1.

3 ch
sow
3 ch
STD

Pair insight - sow / STD

sow and STD are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 34519, 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/. STD is at rank #16,797, tagged as anoun.

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 34519, this pair ranks #320,111 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of sow vs STD

Shared letters: s. Private to "sow": ow. Private to "STD": dt.

"sow" · 3 letters · shape CVC  ·  "STD" · 3 letters · shape CCC

Frequently Asked Questions

Is swapping "sow" for "STD" ever safe?
No. They share most of their letters but differ in 2 positions, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "sow" vs "STD" - which ranks higher?
"STD" is the more common of the two: it sits at frequency rank #16,797 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.

After this comparison

You've compared "sow" and "STD". Here's where to go from here.

  • Full dictionary entry for "sow" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "STD" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #320,111 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "sow" and "STD" also get mixed up with nearby pairs, the highest-scored neighbour is "Sif vs sow". Nearby pair

Confusion rank #320,111 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