fillvsfitsWhat's the difference?

Quick tell: fill is a verb, fits is a noun, so they fill different roles in a sentence.

Which to use

“fill” is a verb and “fits” is a noun - they look or sound alike but fill different roles in a sentence.

#2,297
“fill” frequency rank
#4,527
“fits” frequency rank
6824
confusion score

Side-by-Side Comparison

Feature fill fits
Definition To make full plural of fit

Where the eye mixes fill and fits

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

4 ch
fill
4 ch
fits

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: fill is /fɪl/ while fits is /fɪts/. 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 (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 6824, derived from the frequency rank of both members and their visual similarity.

fill is recorded at frequency rank #2,297, classified as averb, pronounced /fɪl/. fits is at rank #4,527, tagged as anoun, pronounced /fɪts/.

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 6824, this pair ranks #509,808 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of fill vs fits

Shared letters: fi. Private to "fill": l. Private to "fits": st.

"fill" · 4 letters · shape CVCC  ·  "fits" · 4 letters · shape CVCC

Known mistypes of this pair

  • fillffill · flil · ifll
  • fitsffits · fitss · fitts · ftis · ifts

Frequently Asked Questions

Can "fill" and "fits" be used interchangeably?
No - they are not even the same part of speech. "fill" is a verb and "fits" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "fill" or "fits"?
"fill" is the more common of the two: it sits at frequency rank #2,297 in our English list, against #4,527 for "fits". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

You've compared "fill" and "fits". Here's where to go from here.

  • Full dictionary entry for "fill" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fits" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #509,808 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "fill" and "fits" also get mixed up with nearby pairs, the highest-scored neighbour is "Fars vs fits". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.

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

Source: FrequencyWords open word-frequency list