bonavsbungWhat's the difference?

Quick tell: bona is a adjective, bung is a noun, so they fill different roles in a sentence.

Which to use

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

#20,858
“bona” frequency rank
#48,104
“bung” frequency rank
68962
confusion score

Side-by-Side Comparison

Feature bona bung
Definition Good. A stopper, alternative to a cork, often made of rubber, used to prevent fluid passing through the neck of a bottle, vat, a hole in a vessel etc.

Where the eye mixes bona and bung

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
bona
4 ch
bung

Why the eye confuses bona with bung

These two trip readers on the page rather than in the ear: bona is /ˈbəʊnə/ while bung is /ˈbʌŋ/. 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 68962, derived from the frequency rank of both members and their visual similarity.

bona is recorded at frequency rank #20,858, classified as anadj, pronounced /ˈbəʊnə/. bung is at rank #48,104, tagged as anoun, pronounced /ˈbʌŋ/.

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 68962, this pair ranks #56,621 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of bona vs bung

Shared letters: bn. Private to "bona": ao. Private to "bung": gu.

"bona" · 4 letters · shape CVCV  ·  "bung" · 4 letters · shape CVCC

Known mistypes of this pair

  • bonabbona · bnoa · boan · bonna · obna
  • bungbbung · bnug · bugn · bungg · bunng · ubng

Frequently Asked Questions

Is swapping "bona" for "bung" ever safe?
No - they are not even the same part of speech. "bona" is an adjective and "bung" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "bona" or "bung"?
"bona" is the more common of the two: it sits at frequency rank #20,858 in our English list, against #48,104 for "bung". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "bona" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "bung" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #56,621 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "bona" and "bung" also get mixed up with nearby pairs, the highest-scored neighbour is "Bruni vs bung". 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 #56,621 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