sezvsspaWhat's the difference?

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

Which to use

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

#49,041
“sez” frequency rank
#7,611
“spa” frequency rank
56652
confusion score

Side-by-Side Comparison

Feature sez spa
Definition Eye dialect spelling of says. A health resort near a mineral spring or hot spring.

Where the eye mixes sez and spa

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

3 ch
sez
3 ch
spa

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: sez is /sɛz/ while spa is /ˈspɑː/. 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 56652, 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/. spa is at rank #7,611, tagged as anoun, pronounced /ˈspɑː/.

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 56652, this pair ranks #124,704 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of sez vs spa

Shared letters: s. Private to "sez": ez. Private to "spa": ap.

"sez" · 3 letters · shape CVC  ·  "spa" · 3 letters · shape CCV

Frequently Asked Questions

Can "sez" and "spa" be used interchangeably?
No - they are not even the same part of speech. "sez" is a verb and "spa" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "sez" or "spa"?
"spa" is the more common of the two: it sits at frequency rank #7,611 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