solidifyvssolidlyWhat's the difference?

Quick tell: solidify is a verb, solidly is an adverb, so they fill different roles in a sentence.

Which to use

“solidify” is a verb and “solidly” is an adverb - they look or sound alike but fill different roles in a sentence.

#29,470
“solidify” frequency rank
#24,004
“solidly” frequency rank
53474
confusion score

Side-by-Side Comparison

Feature solidify solidly
Definition To make solid; convert into a solid body. In a solid or firm manner.

Letter map: solidify vs solidly

Shared letters muted; letters that set solidify and solidly apart highlighted. Shared run: 6.

8 ch
solidify
7 ch
solidly

Part-of-speech tell for solidify / solidly

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: solidify is averb and solidlyanadverb. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 53474, derived from the frequency rank of both members and their visual similarity.

solidify is recorded at frequency rank #29,470, classified as averb, pronounced /səˈlɪdɪˌfaɪ/. solidly is at rank #24,004, tagged as anadv.

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 53474, this pair ranks #148,665 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of solidify vs solidly

Shared letters: dilosy. Private to "solidify": f. Private to "solidly": -.

"solidify" · 8 letters · shape CVCVCVCV  ·  "solidly" · 7 letters · shape CVCVCCV

Known mistypes of this pair

  • solidifyoslidify · sloidify · soildify · soldiify · soliddify · solidfiy · solidiffy · solidifyy
  • solidlyoslidly · sloidly · soildly · soldily · soliddly · solidlly · solidlyy · solidyl

Frequently Asked Questions

Can "solidify" and "solidly" be used interchangeably?
No - they are not even the same part of speech. "solidify" is a verb and "solidly" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "solidify" or "solidly"?
"solidly" is the more common of the two: it sits at frequency rank #24,004 in our English list, against #29,470 for "solidify". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Done with this confusable. These links stay specific to "solidify" and "solidly".

  • Full dictionary entry for "solidify" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "solidly" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #148,665 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "solidify" and "solidly" also get mixed up with nearby pairs, the highest-scored neighbour is "solidify vs solidity". 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 #148,665 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list