Which to use
“coal” is a noun and “cost” is a verb - they look or sound alike but fill different roles in a sentence.
- #3,048
- “coal” frequency rank
- #568
- “cost” frequency rank
- 3616
- confusion score
Side-by-Side Comparison
| Feature | coal | cost |
|---|---|---|
| Definition | A black or brownish black rock formed from prehistoric plant remains, composed largely of carbon and burned as a fuel. | To incur a charge of; to require payment of a (specified) price. |
Where the eye mixes coal and cost
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Spelling & Dictionary Insight
These two trip readers on the page rather than in the ear: coal is /kəʊl/ while cost is /ˈkɒst/. 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 (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 3616, derived from the frequency rank of both members and their visual similarity.
coal is recorded at frequency rank #3,048, classified as anoun, pronounced /kəʊl/. cost is at rank #568, tagged as averb, pronounced /ˈkɒst/.
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 3616, this pair ranks #521,566 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of coal vs cost
Shared letters: co. Private to "coal": al. Private to "cost": st.
"coal" · 4 letters · shape CVVC · "cost" · 4 letters · shape CVCC