FallvsfastWhat's the difference?

Quick tell: Fall is a noun, fast is an adverb, so they fill different roles in a sentence.

Which to use

“Fall” is a noun and “fast” is an adverb - they look or sound alike but fill different roles in a sentence.

#266
“Fall” frequency rank
#243
“fast” frequency rank
509
confusion score

Side-by-Side Comparison

Feature Fall fast
Definition eine schnelle Abwärtsbewegung nicht ganz

Where the eye mixes Fall and fast

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

4 ch
Fall
4 ch
fast

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: Fall is [fal] while fast is [fast]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 509, derived from the frequency rank of both members and their visual similarity.

Fall is recorded at frequency rank #266, classified as anoun, pronounced [fal]. fast is at rank #243, tagged as anadv, pronounced [fast].

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 509, this pair ranks #2,005,759 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of Fall vs fast

Shared letters: af. Private to "Fall": l. Private to "fast": st.

"Fall" · 4 letters · shape CVCC  ·  "fast" · 4 letters · shape CVCC

Known mistypes of this pair

  • Fallafll · fal · ffall · flal
  • fastafst · fastt · fats · ffast · fsat

Frequently Asked Questions

Can "Fall" and "fast" be used interchangeably?
No - they are not even the same part of speech. "Fall" is a noun and "fast" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "Fall" or "fast"?
"fast" is the more common of the two: it sits at frequency rank #243 in our German list, against #266 for "Fall". 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