structuralvsstructureWhat's the difference?

Quick tell: structural is a adjective, structure is a noun, so they fill different roles in a sentence.

Which to use

“structural” is an adjective and “structure” is a noun - they look or sound alike but fill different roles in a sentence.

#5,371
“structural” frequency rank
#1,543
“structure” frequency rank
6914
confusion score

Side-by-Side Comparison

Feature structural structure
Definition Of, relating to, or having structure. A cohesive whole built up of distinct parts.

Where the eye mixes structural and structure

Muted = shared; highlighted = the visual trap. They share 8 letters in sequence.

10 ch
structural
9 ch
structure

Why the eye confuses structural with structure

These two trip readers on the page rather than in the ear: structural is /ˈstɹʌk(t͡)ʃəɹəl/ while structure is /ˈstɹʌk(t)ʃə(ɹ)/. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 6914, derived from the frequency rank of both members and their visual similarity.

structural is recorded at frequency rank #5,371, classified as anadj, pronounced /ˈstɹʌk(t͡)ʃəɹəl/. structure is at rank #1,543, tagged as anoun, pronounced /ˈstɹʌk(t)ʃə(ɹ)/.

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 6914, this pair ranks #509,431 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of structural vs structure

Shared letters: crstu. Private to "structural": al. Private to "structure": e.

"structural" · 10 letters · shape CCCVCCVCVC  ·  "structure" · 9 letters · shape CCCVCCVCV

Known mistypes of this pair

  • structuralsrtuctural · sstructural · strcutural · strructural · strucctural · structrual · structtural · structuarl
  • structuresrtucture · sstructure · strcuture · strructure · struccture · structrue · structture · structuer

Frequently Asked Questions

Is swapping "structural" for "structure" ever safe?
No - they are not even the same part of speech. "structural" is an adjective and "structure" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "structural" or "structure"?
"structure" is the more common of the two: it sits at frequency rank #1,543 in our English list, against #5,371 for "structural". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Eye-level mix-up between "structural" and "structure" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "structural" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "structure" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #509,431 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "structural" and "structure" also get mixed up with nearby pairs, the highest-scored neighbour is "structural vs structurally". 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 #509,431 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