rad vs rez, What's the Difference?

Which to use

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

#15,039
“rad” frequency rank: #45,052
“rez” frequency rank: 60091
confusion score

Side-by-Side Comparison

Feature	rad	rez
Definition	Clipping of radical (“excellent”).	Clipping of reservation or reserve (semiautonomous Indigenous territory).

Where the eye mixes rad and rez

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

3 ch

rad

3 ch

rez

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: rad is /ɹæd/ while rez is /ɹɛz/. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 60091, derived from the frequency rank of both members and their visual similarity.

rad is recorded at frequency rank #15,039, classified as anadj, pronounced /ɹæd/. rez is at rank #45,052, tagged as anoun, pronounced /ɹɛz/.

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 60091, this pair ranks #102,251 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of rad vs rez

Shared letters: r. Private to "rad": ad. Private to "rez": ez.

"rad" · 3 letters · shape CVC · "rez" · 3 letters · shape CVC

Frequently Asked Questions

Can "rad" and "rez" be used interchangeably?

No - they are not even the same part of speech. "rad" is an adjective and "rez" a noun, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "rad" or "rez"?

"rad" is the more common of the two: it sits at frequency rank #15,039 in our English list, against #45,052 for "rez". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

You've compared "rad" and "rez". Here's where to go from here.

Full dictionary entry for "rad" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "rez" - compare definitions side by side with the headword page. Word entry
This pair ranks #102,251 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"rad" and "rez" also get mixed up with nearby pairs, the highest-scored neighbour is "rez vs Rua". Nearby pair

PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.