rectumvsrecurWhat's the difference?

Quick tell: rectum is a noun, recur is a verb, so they fill different roles in a sentence.

Which to use

“rectum” is a noun and “recur” is a verb - they look or sound alike but fill different roles in a sentence.

#30,561
“rectum” frequency rank
#44,442
“recur” frequency rank
75003
confusion score

Side-by-Side Comparison

Feature rectum recur
Definition The terminal part of the large intestine through which feces pass after exiting the colon, but before leaving the body through the anus or cloaca. Of an event, situation, etc.: to appear or happen again, especially repeatedly.

Where the eye mixes rectum and recur

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. rectum runs 6 letters (CVCCVC) against recur's 5 (CVCVC) - the length gap alone is often enough to separate them once you know to check it.

6 ch
rectum
5 ch
recur

Why the eye confuses rectum with recur

These two trip readers on the page rather than in the ear: rectum is /ˈɹɛktəm/ while recur is /ɹɪˈkɜː/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 75003, derived from the frequency rank of both members and their visual similarity.

rectum is recorded at frequency rank #30,561, classified as anoun, pronounced /ˈɹɛktəm/. recur is at rank #44,442, tagged as averb, pronounced /ɹɪˈkɜː/.

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 75003, this pair ranks #34,529 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of rectum vs recur

Shared letters: ceru. Private to "rectum": mt. Private to "recur": -.

"rectum" · 6 letters · shape CVCCVC  ·  "recur" · 5 letters · shape CVCVC

Known mistypes of this pair

  • rectum ← erctum · rcetum · recctum · rectmu · recttum · rectumm · recutm · retcum
  • recur ← ercur · rceur · reccur · recru · recurr · reucr · rrecur

Frequently Asked Questions

Is swapping "rectum" for "recur" ever safe?
No - they are not even the same part of speech. "rectum" is a noun and "recur" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "rectum" or "recur" show up more?
"rectum" is the more common of the two: it sits at frequency rank #30,561 in our English list, against #44,442 for "recur". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "rectum" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "recur" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #34,529 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "rectum" and "recur" also get mixed up with nearby pairs, the highest-scored neighbour is "rebar vs recur". 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 #34,529 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