provingvsprovisoWhich spelling fits?

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

Which to use

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

#7,171
“proving” frequency rank
#45,016
“proviso” frequency rank
52187
confusion score

Side-by-Side Comparison

Feature proving proviso
Definition present participle and gerund of prove A conditional provision to an agreement.

Where the eye mixes proving and proviso

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. proving (CCVCVCC) and proviso (CCVCVCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

7 ch
proving
7 ch
proviso

Why the eye confuses proving with proviso

These two trip readers on the page rather than in the ear: proving is /ˈpɹuːvɪŋ/ while proviso is /pɹəˈvaɪzoʊ/. 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 52187, derived from the frequency rank of both members and their visual similarity.

proving is recorded at frequency rank #7,171, classified as averb, pronounced /ˈpɹuːvɪŋ/. proviso is at rank #45,016, tagged as anoun, pronounced /pɹəˈvaɪzoʊ/.

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 52187, this pair ranks #159,173 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of proving vs proviso

Shared letters: ioprv. Private to "proving": gn. Private to "proviso": s.

"proving" · 7 letters · shape CCVCVCC  ·  "proviso" · 7 letters · shape CCVCVCV

Known mistypes of this pair

  • proving ← porving · pproving · proivng · provign · provingg · provinng · provnig · provving
  • proviso ← porviso · pproviso · proivso · provios · provisso · provsio · provviso · prroviso

Frequently Asked Questions

Do "proving" and "proviso" mean the same thing in a sentence?
No - they are not even the same part of speech. "proving" is a verb and "proviso" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "proving" or "proviso"?
"proving" is the more common of the two: it sits at frequency rank #7,171 in our English list, against #45,016 for "proviso". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "proving" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "proviso" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #159,173 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "proving" and "proviso" also get mixed up with nearby pairs, the highest-scored neighbour is "proviso vs Provo". 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 #159,173 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