Which to use
“scan” is a verb and “shad” is a noun - they look or sound alike but fill different roles in a sentence.
- #6,412
- “scan” frequency rank
- #35,509
- “shad” frequency rank
- 41921
- confusion score
Side-by-Side Comparison
| Feature | scan | shad |
|---|---|---|
| Definition | To examine sequentially, carefully, or critically; to scrutinize; to behold closely. | Any one of several species of food fishes that make up the genus Alosa in the family Clupeidae, to which the herrings also belong; river herring. |
Where the spellings diverge
Shared letters are muted; the letters that actually set scan and shad apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
scan and shad form a confusable pair in the English index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They share most of their letters but differ in 2 positions - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 41921, derived from the frequency rank of both members and their visual similarity.
scan is recorded at frequency rank #6,412, classified as averb, pronounced /skæn/. shad is at rank #35,509, tagged as anoun, pronounced /ʃæd/.
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 41921, this pair ranks #253,925 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Frequency comparison
Frequently Asked Questions
Can "scan" and "shad" be used interchangeably?
Remembering scan vs shad
The fastest way to pick the right one every time.
- Check the role first: if you need a verb, it's “scan”; for a noun, it's “shad”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “scan” entry
- Browse more pairs most likely to be confused. Most confusable