sezvsSOSWhat's the difference?

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

Which to use

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

#49,041
“sez” frequency rank
#18,189
“SOS” frequency rank
67230
confusion score

Side-by-Side Comparison

Feature sez SOS
Definition Eye dialect spelling of says. The conventional Morse code call made by a ship in distress.

Where the eye mixes sez and SOS

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

3 ch
sez
3 ch
SOS

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: sez is /sɛz/ while SOS is /ˌɛs.əʊˈɛs/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 67230, derived from the frequency rank of both members and their visual similarity.

sez is recorded at frequency rank #49,041, classified as averb, pronounced /sɛz/. SOS is at rank #18,189, tagged as anoun, pronounced /ˌɛs.əʊˈɛs/.

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 67230, this pair ranks #64,316 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of sez vs SOS

Shared letters: s. Private to "sez": ez. Private to "SOS": o.

"sez" · 3 letters · shape CVC  ·  "SOS" · 3 letters · shape CVC

Frequently Asked Questions

Can "sez" and "SOS" be used interchangeably?
No - they are not even the same part of speech. "sez" is a verb and "SOS" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "sez" or "SOS"?
"SOS" is the more common of the two: it sits at frequency rank #18,189 in our English list, against #49,041 for "sez". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list