bonevsboundWhat's the difference?

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

Which to use

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

#3,148
“bone” frequency rank
#3,212
“bound” frequency rank
6360
confusion score

Side-by-Side Comparison

Feature bone bound
Definition A composite material consisting largely of calcium phosphate and collagen and making up the skeleton of most vertebrates. simple past and past participle of bind

Where the eye mixes bone and bound

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

4 ch
bone
5 ch
bound

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: bone is /bəʊn/ while bound is /ˈbaʊnd/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 6360, derived from the frequency rank of both members and their visual similarity.

bone is recorded at frequency rank #3,148, classified as anoun, pronounced /bəʊn/. bound is at rank #3,212, tagged as averb, pronounced /ˈbaʊnd/.

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 6360, this pair ranks #511,740 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of bone vs bound

Shared letters: bno. Private to "bone": e. Private to "bound": du.

"bone" · 4 letters · shape CVCV  ·  "bound" · 5 letters · shape CVVCC

Known mistypes of this pair

  • bonebbone · bnoe · boen · obne
  • boundbbound · bonud · boudn · boundd · bounnd · buond · obund

Frequently Asked Questions

Can "bone" and "bound" be used interchangeably?
No - they are not even the same part of speech. "bone" is a noun and "bound" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "bone" or "bound"?
"bone" is the more common of the two: it sits at frequency rank #3,148 in our English list, against #3,212 for "bound". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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

Source: FrequencyWords open word-frequency list