registervsregisteredConfusable pair

Quick tell: register is a noun, registered is an adjective, so they fill different roles in a sentence.

Which to use

“register” is a noun and “registered” is an adjective - they look or sound alike but fill different roles in a sentence.

#2,553
“register” frequency rank
#2,910
“registered” frequency rank
5463
confusion score

Side-by-Side Comparison

Feature register registered
Definition A formal recording of names, events, transactions, etc. Having had one's name added to an official list or entered into a register.

Where the eye mixes register and registered

Muted = shared; highlighted = the visual trap. They share 8 letters in sequence.

8 ch
register
10 ch
registered

Why the eye confuses register with registered

These two trip readers on the page rather than in the ear: register is /ˈɹɛd͡ʒ.ɪ.stə/ while registered is /ˈɹɛd͡ʒ.ɪs.tɚd/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “register” sits inside “registered”, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 5463, derived from the frequency rank of both members and their visual similarity.

register is recorded at frequency rank #2,553, classified as anoun, pronounced /ˈɹɛd͡ʒ.ɪ.stə/. registered is at rank #2,910, tagged as anadj, pronounced /ˈɹɛd͡ʒ.ɪs.tɚd/.

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 5463, this pair ranks #515,236 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of register vs registered

Shared letters: egirst. Private to "register": -. Private to "registered": d.

"register" · 8 letters · shape CVCVCCVC  ·  "registered" · 10 letters · shape CVCVCCVCVC

Known mistypes of this pair

  • registerergister · reggister · regisetr · regisster · registerr · registre · registter · regitser
  • registeredergistered · reggistered · regisetred · regisstered · registeerd · registerde · registeredd · registerred

Frequently Asked Questions

Do "register" and "registered" mean the same thing in a sentence?
No - they are not even the same part of speech. "register" is a noun and "registered" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "register" vs "registered" - which ranks higher?
"register" is the more common of the two: it sits at frequency rank #2,553 in our English list, against #2,910 for "registered". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "register" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "registered" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #515,236 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "register" and "registered" also get mixed up with nearby pairs, the highest-scored neighbour is "register vs remaster". 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 #515,236 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