thudvstunWhich spelling fits?

Which to use

“thud” and “tun” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#33,056
“thud” frequency rank
#30,265
“tun” frequency rank
63321
confusion score

Side-by-Side Comparison

Feature thud tun
Definition The sound of a dull impact. A large cask; an oblong vessel bulging in the middle, like a pipe or puncheon, and girt with hoops; a wine cask. (See a diagram comparing cask sizes.)

Where the eye mixes thud and tun

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

4 ch
thud
3 ch
tun

Visual trap between thud and tun

A purely visual mix-up. thud (/ˈθʌd/) and tun (/tʌn/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 63321, derived from the frequency rank of both members and their visual similarity.

thud is recorded at frequency rank #33,056, classified as anoun, pronounced /ˈθʌd/. tun is at rank #30,265, tagged as anoun, pronounced /tʌn/.

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 63321, this pair ranks #83,609 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of thud vs tun

Shared letters: tu. Private to "thud": dh. Private to "tun": n.

"thud" · 4 letters · shape CCVC  ·  "tun" · 3 letters · shape CVC

Known mistypes of this pair

  • thudhtud · thdu · thhud · thudd · tthud · tuhd

Frequently Asked Questions

Do "thud" and "tun" mean the same thing in a sentence?
No. They are said differently (/ˈθʌd/ versus /tʌn/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "thud" or "tun"?
"tun" is the more common of the two: it sits at frequency rank #30,265 in our English list, against #33,056 for "thud". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "thud" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "tun" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #83,609 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "thud" and "tun" also get mixed up with nearby pairs, the highest-scored neighbour is "thud vs Thun". 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 #83,609 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