Which to use
“faith” is a noun and “fast” is an adjective - they look or sound alike but fill different roles in a sentence.
- #1,597
- “faith” frequency rank
- #767
- “fast” frequency rank
- 2364
- confusion score
Side-by-Side Comparison
| Feature | faith | fast |
|---|---|---|
| Definition | A trust or confidence in the intentions or abilities of a person, object, or ideal from prior empirical evidence. | Firmly or securely fixed in place; stable. |
Where the eye mixes faith and fast
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Spelling & Dictionary Insight
These two trip readers on the page rather than in the ear: faith is /feɪθ/ while fast is /fɑːst/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 2364, derived from the frequency rank of both members and their visual similarity.
faith is recorded at frequency rank #1,597, classified as anoun, pronounced /feɪθ/. 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 2364, this pair ranks #525,167 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of faith vs fast
Shared letters: aft. Private to "faith": hi. Private to "fast": s.
"faith" · 5 letters · shape CVVCC · "fast" · 4 letters · shape CVCC