Which to use
“heavily” is an adverb and “heavy” is an adjective - they look or sound alike but fill different roles in a sentence.
- #2,793
- “heavily” frequency rank
- #1,170
- “heavy” frequency rank
- 3963
- confusion score
Side-by-Side Comparison
| Feature | heavily | heavy |
|---|---|---|
| Definition | With a great weight. | Having great weight. |
Where the eye mixes heavily and heavy
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. heavily runs 7 letters (CVVCVCV) against heavy's 5 (CVVCV) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses heavily with heavy
These two trip readers on the page rather than in the ear: heavily is /ˈhɛvɪli/ while heavy is /ˈhɛv.i/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (adverb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 3963, derived from the frequency rank of both members and their visual similarity.
heavily is recorded at frequency rank #2,793, classified as anadv, pronounced /ˈhɛvɪli/. heavy is at rank #1,170, tagged as anadj, pronounced /ˈhɛv.i/.
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 3963, this pair ranks #520,428 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of heavily vs heavy
Shared letters: aehvy. Private to "heavily": il. Private to "heavy": -.
"heavily" · 7 letters · shape CVVCVCV · "heavy" · 5 letters · shape CVVCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "heavily" for "heavy" ever safe?
In ordinary English text, does "heavily" or "heavy" show up more?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "heavily" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "heavy" - compare definitions side by side with the headword page. Word entry
- This pair ranks #520,428 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "heavily" and "heavy" also get mixed up with nearby pairs, the highest-scored neighbour is "heavy vs Henny". 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 #520,428 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.