infamyvsinfancyWhat's the difference?

Which to use

“infamy” and “infancy” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#34,540
“infamy” frequency rank
#17,641
“infancy” frequency rank
52181
confusion score

Side-by-Side Comparison

Feature infamy infancy
Definition The state of being infamous. The earliest period of childhood (crawling rather than walking).

Where the eye mixes infamy and infancy

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. infamy runs 6 letters (VCCVCV) against infancy's 7 (VCCVCCV) - the length gap alone is often enough to separate them once you know to check it.

6 ch
infamy
7 ch
infancy

Why the eye confuses infamy with infancy

A purely visual mix-up. infamy (/ˈɪnfəmi/) and infancy (/ˈɪnfənsi/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 52181, derived from the frequency rank of both members and their visual similarity.

infamy is recorded at frequency rank #34,540, classified as anoun, pronounced /ˈɪnfəmi/. infancy is at rank #17,641, tagged as anoun, pronounced /ˈɪnfənsi/.

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 52181, this pair ranks #159,239 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of infamy vs infancy

Shared letters: afiny. Private to "infamy": m. Private to "infancy": c.

"infamy" · 6 letters · shape VCCVCV  ·  "infancy" · 7 letters · shape VCCVCCV

Known mistypes of this pair

  • infamy ← ifnamy · inafmy · infammy · infamyy · infaym · inffamy · infmay · innfamy
  • infancy ← ifnancy · inafncy · infacny · infanccy · infancyy · infanncy · infanyc · inffancy

Frequently Asked Questions

Is swapping "infamy" for "infancy" ever safe?
No. They are said differently (/ˈɪnfəmi/ versus /ˈɪnfənsi/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary English text, does "infamy" or "infancy" show up more?
"infancy" is the more common of the two: it sits at frequency rank #17,641 in our English list, against #34,540 for "infamy". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "infamy" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "infancy" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #159,239 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "infamy" and "infancy" also get mixed up with nearby pairs, the highest-scored neighbour is "infamy vs inflame". 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 #159,239 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