softvssouTell them apart

Quick tell: soft is a adjective, sou is a noun, so they fill different roles in a sentence.

Which to use

“soft” is an adjective and “sou” is a noun - they look or sound alike but fill different roles in a sentence.

#2,130
“soft” frequency rank
#35,525
“sou” frequency rank
37655
confusion score

Side-by-Side Comparison

Feature soft sou
Definition Easily giving way under pressure. An old French copper coin equal to one twentieth of a livre or twelve deniers; one sou is to the livre as one shilling is to the pound.

Where the eye mixes soft and sou

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

4 ch
soft
3 ch
sou

Look-alike desk: soft vs sou

These two trip readers on the page rather than in the ear: soft is /sɒft/ while sou is /suː/. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 37655, derived from the frequency rank of both members and their visual similarity.

soft is recorded at frequency rank #2,130, classified as anadj, pronounced /sɒft/. sou is at rank #35,525, tagged as anoun, pronounced /suː/.

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 37655, this pair ranks #292,709 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of soft vs sou

Shared letters: os. Private to "soft": ft. Private to "sou": u.

"soft" · 4 letters · shape CVCC  ·  "sou" · 3 letters · shape CVV

Known mistypes of this pair

  • softosft · sfot · sofft · softt · sotf · ssoft

Frequently Asked Questions

Is swapping "soft" for "sou" ever safe?
No - they are not even the same part of speech. "soft" is an adjective and "sou" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "soft" or "sou" show up more?
"soft" is the more common of the two: it sits at frequency rank #2,130 in our English list, against #35,525 for "sou". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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 "soft" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sou" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #292,709 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "soft" and "sou" also get mixed up with nearby pairs, the highest-scored neighbour is "Sif vs sou". 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 #292,709 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