Which to use
“spare” is an adjective and “spike” is a noun - they look or sound alike but fill different roles in a sentence.
- #4,490
- “spare” frequency rank
- #7,612
- “spike” frequency rank
- 12102
- confusion score
Side-by-Side Comparison
| Feature | spare | spike |
|---|---|---|
| Definition | Extra. | A sort of very large nail. |
Where the eye mixes spare and spike
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Look-alike desk: spare vs spike
These two trip readers on the page rather than in the ear: spare is /spɛə(ɹ)/ while spike is /spaɪk/. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 12102, derived from the frequency rank of both members and their visual similarity.
spare is recorded at frequency rank #4,490, classified as anadj, pronounced /spɛə(ɹ)/. spike is at rank #7,612, tagged as anoun, pronounced /spaɪk/.
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 12102, this pair ranks #483,406 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of spare vs spike
Shared letters: eps. Private to "spare": ar. Private to "spike": ik.
"spare" · 5 letters · shape CCVCV · "spike" · 5 letters · shape CCVCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "spare" for "spike" ever safe?
Which is more common, "spare" or "spike"?
What to do next
Eye-level mix-up between "spare" and "spike" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "spare" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "spike" - compare definitions side by side with the headword page. Word entry
- This pair ranks #483,406 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "spare" and "spike" also get mixed up with nearby pairs, the highest-scored neighbour is "snide vs spike". 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 #483,406 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.