rebarvsretardConfusable pair

Which to use

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

#48,999
“rebar” frequency rank
#17,936
“retard” frequency rank
66935
confusion score

Side-by-Side Comparison

Feature rebar retard
Definition A steel reinforcing bar in a reinforced concrete structure. A retardation; a delay.

Where the eye mixes rebar and retard

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

5 ch
rebar
6 ch
retard

Visual trap between rebar and retard

A purely visual mix-up. rebar (/ˈɹiː.bɑː(ɹ)/) and retard (/ɹɪˈtɑː(ɹ)d/) 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 66935, derived from the frequency rank of both members and their visual similarity.

rebar is recorded at frequency rank #48,999, classified as anoun, pronounced /ˈɹiː.bɑː(ɹ)/. retard is at rank #17,936, tagged as anoun, pronounced /ɹɪˈtɑː(ɹ)d/.

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 66935, this pair ranks #65,684 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of rebar vs retard

Shared letters: aer. Private to "rebar": b. Private to "retard": dt.

"rebar" · 5 letters · shape CVCVC  ·  "retard" · 6 letters · shape CVCVCC

Known mistypes of this pair

  • rebarerbar · rbear · reabr · rebarr · rebbar · rebra · rrebar
  • retardertard · reatrd · retadr · retardd · retarrd · retrad · rettard · rretard

Frequently Asked Questions

Is swapping "rebar" for "retard" ever safe?
No. They are said differently (/ˈɹiː.bɑː(ɹ)/ versus /ɹɪˈtɑː(ɹ)d/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "rebar" or "retard"?
"retard" is the more common of the two: it sits at frequency rank #17,936 in our English list, against #48,999 for "rebar". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "rebar" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "retard" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #65,684 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "rebar" and "retard" also get mixed up with nearby pairs, the highest-scored neighbour is "rebar vs rebut". 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 #65,684 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