bulkvsbumWhat's the difference?

Which to use

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

#5,195
“bulk” frequency rank
#10,339
“bum” frequency rank
15534
confusion score

Side-by-Side Comparison

Feature bulk bum
Definition Size, specifically, volume. The buttocks.

Where the eye mixes bulk and bum

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

4 ch
bulk
3 ch
bum

Spelling & Dictionary Insight

A purely visual mix-up. bulk (/bʌlk/) and bum (/bʌm/) 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 15534, derived from the frequency rank of both members and their visual similarity.

bulk is recorded at frequency rank #5,195, classified as anoun, pronounced /bʌlk/. bum is at rank #10,339, tagged as anoun, pronounced /bʌm/.

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 15534, this pair ranks #463,387 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of bulk vs bum

Shared letters: bu. Private to "bulk": kl. Private to "bum": m.

"bulk" · 4 letters · shape CVCC  ·  "bum" · 3 letters · shape CVC

Known mistypes of this pair

  • bulkbbulk · bluk · bukl · bulkk · bullk · ublk

Frequently Asked Questions

Can "bulk" and "bum" be used interchangeably?
No. They are said differently (/bʌlk/ versus /bʌm/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "bulk" or "bum"?
"bulk" is the more common of the two: it sits at frequency rank #5,195 in our English list, against #10,339 for "bum". 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 "bulk" and "bum". Here's where to go from here.

  • Full dictionary entry for "bulk" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "bum" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #463,387 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "bulk" and "bum" also get mixed up with nearby pairs, the highest-scored neighbour is "BFS vs bum". 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

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

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list