surevssurgedWhat's the difference?

Quick tell: sure is a adjective, surged is a verb, so they fill different roles in a sentence.

Which to use

“sure” is an adjective and “surged” is a verb - they look or sound alike but fill different roles in a sentence.

#202
“sure” frequency rank
#29,110
“surged” frequency rank
29312
confusion score

Side-by-Side Comparison

Feature sure surged
Definition Physically secure and certain, non-failing, reliable. simple past and past participle of surge

Letter map: sure vs surged

Shared letters muted; letters that set sure and surged apart highlighted. Shared run: 4.

4 ch
sure
6 ch
surged

Spelling & Dictionary Insight

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: sure is anadjective and surgedaverb. On the page they differ by 2 letter(s) in length. Our composite confusion score for this pair is 29312, derived from the frequency rank of both members and their visual similarity.

sure is recorded at frequency rank #202, classified as anadj, pronounced /ʃɔː(ɹ)/. surged is at rank #29,110, tagged as averb.

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 29312, this pair ranks #364,010 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of sure vs surged

Shared letters: ersu. Private to "sure": -. Private to "surged": dg.

"sure" · 4 letters · shape CVCV  ·  "surged" · 6 letters · shape CVCCVC

Known mistypes of this pair

  • suresrue · ssure · suer · surre · usre
  • surgedsruged · ssurged · sugred · suregd · surgde · surgedd · surgged · surrged

Frequently Asked Questions

Can "sure" and "surged" be used interchangeably?
No - they are not even the same part of speech. "sure" is an adjective and "surged" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "sure" or "surged"?
"sure" is the more common of the two: it sits at frequency rank #202 in our English list, against #29,110 for "surged". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list