Which to use
“decibel” is a noun and “decides” is a verb - they look or sound alike but fill different roles in a sentence.
- #49,863
- “decibel” frequency rank
- #5,490
- “decides” frequency rank
- 55353
- confusion score
Side-by-Side Comparison
| Feature | decibel | decides |
|---|---|---|
| Definition | A common measure of intensity ratio (e.g. for sound) that is one tenth of a bel on the logarithmic intensity scale. It is defined as dB = 10 log₁₀(P₁ / P₂), where P₁ and P₂ are the relative intensities. | third-person singular simple present indicative of decide |
Where the eye mixes decibel and decides
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.
Look-alike desk: decibel vs decides
These two trip readers on the page rather than in the ear: decibel is /ˈdɛsɪbɛl/ while decides is /dɪˈsaɪdz/. 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 55353, derived from the frequency rank of both members and their visual similarity.
decibel is recorded at frequency rank #49,863, classified as anoun, pronounced /ˈdɛsɪbɛl/. decides is at rank #5,490, tagged as averb, pronounced /dɪˈsaɪdz/.
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 55353, this pair ranks #134,257 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of decibel vs decides
Shared letters: cdei. Private to "decibel": bl. Private to "decides": s.
"decibel" · 7 letters · shape CVCVCVC · "decides" · 7 letters · shape CVCVCVC
Known mistypes of this pair
Frequently Asked Questions
Can "decibel" and "decides" be used interchangeably?
In ordinary English text, does "decibel" or "decides" show up more?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "decibel" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "decides" - compare definitions side by side with the headword page. Word entry
- This pair ranks #134,257 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "decibel" and "decides" also get mixed up with nearby pairs, the highest-scored neighbour is "decibel vs decider". 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 #134,257 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.