sectionvssuctionWhich spelling fits?

Which to use

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

#1,097
“section” frequency rank
#18,197
“suction” frequency rank
19294
confusion score

Side-by-Side Comparison

Feature section suction
Definition A cutting; a part cut out from the rest of something. A force which pushes matter from one space into another because the pressure inside the second space is lower than the pressure in the first.

Where the eye mixes section and suction

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence.

7 ch
section
7 ch
suction

Why the eye confuses section with suction

A purely visual mix-up. section (/ˈsɛkʃən/) and suction (/ˈsʌkʃən/) 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 a single letter - e in “section” becomes u in “suction”. Our composite confusion score for this pair is 19294, derived from the frequency rank of both members and their visual similarity.

section is recorded at frequency rank #1,097, classified as anoun, pronounced /ˈsɛkʃən/. suction is at rank #18,197, tagged as anoun, pronounced /ˈsʌkʃən/.

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 19294, this pair ranks #439,170 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of section vs suction

Shared letters: cinost. Private to "section": e. Private to "suction": u.

"section" · 7 letters · shape CVCCVVC  ·  "suction" · 7 letters · shape CVCCVVC

Known mistypes of this pair

  • sectionesction · scetion · secction · seciton · secsion · sectino · sectionn · sectoin
  • suctionscution · ssuction · sucction · suciton · sucsion · suctino · suctionn · suctoin

Frequently Asked Questions

Is swapping "section" for "suction" ever safe?
No. They are said differently (/ˈsɛkʃən/ versus /ˈsʌkʃən/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "section" vs "suction" - which ranks higher?
"section" is the more common of the two: it sits at frequency rank #1,097 in our English list, against #18,197 for "suction". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

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

  • Full dictionary entry for "section" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "suction" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #439,170 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "section" and "suction" also get mixed up with nearby pairs, the highest-scored neighbour is "scion vs suction". 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 #439,170 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