didvsdidntWhat's the difference?

Quick tell: did is a verb, didnt is a contraction, so they fill different roles in a sentence.

Which to use

“did” is a verb and “didnt” is a contraction - they look or sound alike but fill different roles in a sentence.

#114
“did” frequency rank
#5,319
“didnt” frequency rank
5433
confusion score

Side-by-Side Comparison

Feature did didnt
Definition simple past of do Misspelling of didn't.

Where the spellings diverge

Shared letters are muted; the letters that actually set did and didnt apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.

3 ch
did
5 ch
didnt

Spelling & Dictionary Insight

did and didnt form a confusable pair in the English index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by 2 extra letter(s) - “did” sits inside “didnt” - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 5433, derived from the frequency rank of both members and their visual similarity.

did is recorded at frequency rank #114, classified as averb, pronounced /dɪd/. didnt is at rank #5,319, tagged as acontraction.

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 5433, this pair ranks #515,347 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Frequency comparison

did#114
didnt#5,319

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "did" and "didnt" be used interchangeably?
No, "did" and "didnt" have distinct meanings and cannot be swapped without changing the meaning of a sentence. Understanding the specific definition and context for each word is essential for correct usage.

Remembering did vs didnt

The fastest way to pick the right one every time.

  • Check the role first: if you need a verb, it's “did”; for a contraction, it's “didnt”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “did” 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 FrequencyWords open word-frequency list