linearvsliterWhich spelling fits?

Quick tell: linear is a adjective, liter is a noun, so they fill different roles in a sentence.

Which to use

“linear” is an adjective and “liter” is a noun - they look or sound alike but fill different roles in a sentence.

#5,894
“linear” frequency rank
#15,855
“liter” frequency rank
21749
confusion score

Side-by-Side Comparison

Feature linear liter
Definition Having the form of a line; straight or roughly straight; following a direct course. Alternative form of litre, one cubic decimeter.

Where the eye mixes linear and liter

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

6 ch
linear
5 ch
liter

Visual trap between linear and liter

These two trip readers on the page rather than in the ear: linear is /ˈlɪni.ə/ while liter is /ˈliː.tə/. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 21749, derived from the frequency rank of both members and their visual similarity.

linear is recorded at frequency rank #5,894, classified as anadj, pronounced /ˈlɪni.ə/. liter is at rank #15,855, tagged as anoun, pronounced /ˈliː.tə/.

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 21749, this pair ranks #421,630 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of linear vs liter

Shared letters: eilr. Private to "linear": an. Private to "liter": t.

"linear" · 6 letters · shape CVCVVC  ·  "liter" · 5 letters · shape CVCVC

Known mistypes of this pair

  • linearilnear · lienar · linaer · linearr · linera · linnear · llinear · lniear
  • literilter · lietr · literr · lliter · ltier

Frequently Asked Questions

Is swapping "linear" for "liter" ever safe?
No - they are not even the same part of speech. "linear" is an adjective and "liter" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "linear" or "liter"?
"linear" is the more common of the two: it sits at frequency rank #5,894 in our English list, against #15,855 for "liter". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "linear" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "liter" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #421,630 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "linear" and "liter" also get mixed up with nearby pairs, the highest-scored neighbour is "laver vs liter". 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

Confusion rank #421,630 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list