secedevssecureWhich spelling fits?

Quick tell: secede is a verb, secure is an adjective, so they fill different roles in a sentence.

Which to use

“secede” is a verb and “secure” is an adjective - they look or sound alike but fill different roles in a sentence.

#37,679
“secede” frequency rank
#2,315
“secure” frequency rank
39994
confusion score

Side-by-Side Comparison

Feature secede secure
Definition To split from or to withdraw from membership of a political union, an alliance or an organisation. Free from attack or danger; protected.

Where the eye mixes secede and secure

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

6 ch
secede
6 ch
secure

Look-alike desk: secede vs secure

These two trip readers on the page rather than in the ear: secede is /sɪˈsiːd/ while secure is /sɪˈkjʊə(ɹ)/. 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 (verb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 39994, derived from the frequency rank of both members and their visual similarity.

secede is recorded at frequency rank #37,679, classified as averb, pronounced /sɪˈsiːd/. secure is at rank #2,315, tagged as anadj, pronounced /sɪˈkjʊə(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 39994, this pair ranks #271,617 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of secede vs secure

Shared letters: ces. Private to "secede": d. Private to "secure": ru.

"secede" · 6 letters · shape CVCVCV  ·  "secure" · 6 letters · shape CVCVCV

Known mistypes of this pair

  • secedeescede · sceede · seccede · secdee · secedde · seceed · seecde · ssecede
  • secureescure · sceure · seccure · secrue · secuer · securre · seucre · ssecure

Frequently Asked Questions

Do "secede" and "secure" mean the same thing in a sentence?
No - they are not even the same part of speech. "secede" is a verb and "secure" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "secede" or "secure" show up more?
"secure" is the more common of the two: it sits at frequency rank #2,315 in our English list, against #37,679 for "secede". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

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

  • Full dictionary entry for "secede" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "secure" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #271,617 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "secede" and "secure" also get mixed up with nearby pairs, the highest-scored neighbour is "secede vs secrete". 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 #271,617 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