soxvsspyWhat's the difference?

Which to use

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

#9,101
“sox” frequency rank
#4,799
“spy” frequency rank
13900
confusion score

Side-by-Side Comparison

Feature sox spy
Definition plural of sock (footwear) A person who secretly watches and examines the actions of other individuals or organizations and gathers information on them (usually to gain an advantage).

Where the eye mixes sox and spy

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

3 ch
sox
3 ch
spy

Why the eye confuses sox with spy

A purely visual mix-up. sox (/sɑks/) and spy (/spaɪ/) 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 13900, derived from the frequency rank of both members and their visual similarity.

sox is recorded at frequency rank #9,101, classified as anoun, pronounced /sɑks/. spy is at rank #4,799, tagged as anoun, pronounced /spaɪ/.

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 13900, this pair ranks #473,230 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of sox vs spy

Shared letters: s. Private to "sox": ox. Private to "spy": py.

"sox" · 3 letters · shape CVC  ·  "spy" · 3 letters · shape CCV

Frequently Asked Questions

Can "sox" and "spy" be used interchangeably?
No. They are said differently (/sɑks/ versus /spaɪ/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "sox" or "spy"?
"spy" is the more common of the two: it sits at frequency rank #4,799 in our English list, against #9,101 for "sox". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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 "sox" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "spy" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #473,230 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "sox" and "spy" also get mixed up with nearby pairs, the highest-scored neighbour is "Sif vs sox". Nearby pair

Confusion rank #473,230 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