sez vs sub, What's the Difference?

Which to use

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

#49,041
“sez” frequency rank: #2,236
“sub” frequency rank: 51277
confusion score

Side-by-Side Comparison

Feature	sez	sub
Definition	Eye dialect spelling of says.	Abbreviation of submarine.

Where the eye mixes sez and sub

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

3 ch

sez

3 ch

sub

Why the eye confuses sez with sub

These two trip readers on the page rather than in the ear: sez is /sɛz/ while sub is /sʌb/. 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 51277, 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/. sub is at rank #2,236, tagged as anoun, pronounced /sʌb/.

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 51277, this pair ranks #166,838 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of sez vs sub

Shared letters: s. Private to "sez": ez. Private to "sub": bu.

"sez" · 3 letters · shape CVC · "sub" · 3 letters · shape CVC

Frequently Asked Questions

Do "sez" and "sub" mean the same thing in a sentence?

No - they are not even the same part of speech. "sez" is a verb and "sub" a noun, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "sez" or "sub"?

"sub" is the more common of the two: it sits at frequency rank #2,236 in our English list, against #49,041 for "sez". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

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

Full dictionary entry for "sez" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "sub" - compare definitions side by side with the headword page. Word entry
This pair ranks #166,838 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"sez" and "sub" also get mixed up with nearby pairs, the highest-scored neighbour is "sez vs Sif". Nearby pair

Confusion rank #166,838 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.