infectionvsinflectionWhat's the difference?

Which to use

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

#4,093
“infection” frequency rank
#33,686
“inflection” frequency rank
37779
confusion score

Side-by-Side Comparison

Feature infection inflection
Definition The act or process of infecting. The linguistic phenomenon of morphological variation, whereby terms take a number of distinct forms in order to express different grammatical features.

Where the spellings diverge

Shared letters are muted; the letters that actually set infection and inflection apart are highlighted. They share 9 letters in sequence, which is exactly why the eye skips the difference.

9 ch
infection
10 ch
inflection

Spelling & Dictionary Insight

A purely visual mix-up. infection (/ɪnˈfɛkʃən/) and inflection (/ɪnˈflɛkʃən/) 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 37779, derived from the frequency rank of both members and their visual similarity.

infection is recorded at frequency rank #4,093, classified as anoun, pronounced /ɪnˈfɛkʃən/. inflection is at rank #33,686, tagged as anoun, pronounced /ɪnˈflɛkʃən/.

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 37779, this pair ranks #291,577 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of infection vs inflection

Shared letters: cefinot. Private to "infection": -. Private to "inflection": l.

"infection" · 9 letters · shape VCCVCCVVC  ·  "inflection" · 10 letters · shape VCCCVCCVVC

Known mistypes of this pair

  • infectionifnection · inefction · infcetion · infecction · infeciton · infecsion · infectino · infectionn
  • inflectionifnlection · infelction · infflection · inflcetion · inflecction · infleciton · inflecsion · inflectino

Frequency comparison

infection#4,093
inflection#33,686

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "infection" and "inflection" be used interchangeably?
No. They are said differently (/ɪnˈfɛkʃən/ versus /ɪnˈflɛkʃən/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "infection" or "inflection"?
"infection" is the more common of the two: it sits at frequency rank #4,093 in our English list, against #33,686 for "inflection". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering infection vs inflection

The fastest way to pick the right one every time.

  • Read both glosses above and match the meaning you intend, only context separates this pair.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “infection” entry
  • Browse more pairs most likely to be confused. Most confusable

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

Source: FrequencyWords open word-frequency list