assurevsassuredWhat's the difference?

Which to use

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

#6,438
“assure” frequency rank
#6,329
“assured” frequency rank
12767
confusion score

Side-by-Side Comparison

Feature assure assured
Definition To make sure and secure; ensure. simple past and past participle of assure

Where the spellings diverge

Shared letters are muted; the letters that actually set assure and assured apart are highlighted. They share 6 letters in sequence, which is exactly why the eye skips the difference.

6 ch
assure
7 ch
assured

Spelling & Dictionary Insight

A purely visual mix-up. assure (/əˈʃɔː(ɹ)/) and assured (/əˈʃʊəd/) 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 extra letter(s) - “assure” sits inside “assured”. Our composite confusion score for this pair is 12767, derived from the frequency rank of both members and their visual similarity.

assure is recorded at frequency rank #6,438, classified as averb, pronounced /əˈʃɔː(ɹ)/. assured is at rank #6,329, tagged as averb, pronounced /əˈʃʊəd/.

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 12767, this pair ranks #479,691 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of assure vs assured

Shared letters: aersu. Private to "assure": -. Private to "assured": d.

"assure" · 6 letters · shape VCCVCV  ·  "assured" · 7 letters · shape VCCVCVC

Known mistypes of this pair

  • assureassrue · assuer · assurre · asure · asusre · sasure
  • assuredassrued · assuerd · assurde · assuredd · assurred · asured · asusred · sasured

Frequency comparison

assure#6,438
assured#6,329

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "assure" and "assured" be used interchangeably?
No. They are said differently (/əˈʃɔː(ɹ)/ versus /əˈʃʊəd/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "assure" or "assured"?
"assured" is the more common of the two: it sits at frequency rank #6,329 in our English list, against #6,438 for "assure". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering assure vs assured

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 “assure” 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