datavsdaysWhat's the difference?

Which to use

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

#455
“data” frequency rank
#218
“days” frequency rank
673
confusion score

Side-by-Side Comparison

Feature data days
Definition plural of datum plural of day

Where the eye mixes data and days

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
data
4 ch
days

Spelling & Dictionary Insight

A purely visual mix-up. data (/ˈdɑː.tə/) and days (/ˈdeɪz/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 673, derived from the frequency rank of both members and their visual similarity.

data is recorded at frequency rank #455, classified as anoun, pronounced /ˈdɑː.tə/. days is at rank #218, tagged as anoun, pronounced /ˈdeɪz/.

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 673, this pair ranks #529,008 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of data vs days

Shared letters: ad. Private to "data": t. Private to "days": sy.

"data" · 4 letters · shape CVCV  ·  "days" · 4 letters · shape CVVC

Known mistypes of this pair

  • dataadta · daat · datta · ddata · dtaa
  • daysadys · dasy · dayss · dayys · ddays · dyas

Frequently Asked Questions

Can "data" and "days" be used interchangeably?
No. They are said differently (/ˈdɑː.tə/ versus /ˈdeɪz/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "data" or "days"?
"days" is the more common of the two: it sits at frequency rank #218 in our English list, against #455 for "data". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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

Source: FrequencyWords open word-frequency list