Which to use
“fal” is a verb and “fast” is an adjective - they look or sound alike but fill different roles in a sentence.
- #43,151
- “fal” frequency rank
- #767
- “fast” frequency rank
- 43918
- confusion score
Side-by-Side Comparison
| Feature | fal | fast |
|---|---|---|
| Definition | Obsolete spelling of fall. | Firmly or securely fixed in place; stable. |
Letter map: fal vs fast
Shared letters muted; letters that set fal and fast apart highlighted. Shared run: 2.
Spelling & Dictionary Insight
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: fal is averb and fastanadjective. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 43918, derived from the frequency rank of both members and their visual similarity.
fal is recorded at frequency rank #43,151, classified as averb. fast is at rank #767, tagged as anadj, pronounced /fɑːst/.
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 43918, this pair ranks #235,411 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of fal vs fast
Shared letters: af. Private to "fal": l. Private to "fast": st.
"fal" · 3 letters · shape CVC · "fast" · 4 letters · shape CVCC
Known mistypes of this pair
- fast ← afst · fasst · fastt · ffast · fsat