leastvslostWhich spelling fits?

Quick tell: least is a adjective, lost is a verb, so they fill different roles in a sentence.

Which to use

“least” is an adjective and “lost” is a verb - they look or sound alike but fill different roles in a sentence.

#348
“least” frequency rank
#400
“lost” frequency rank
748
confusion score

Side-by-Side Comparison

Feature least lost
Definition Chiefly preceded by the: superlative form of little: most little. simple past and past participle of lose

Where the eye mixes least and lost

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
least
4 ch
lost

Visual trap between least and lost

These two trip readers on the page rather than in the ear: least is /liːst/ while lost is /lɒst/. 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 verb), which is usually the fastest check. Our composite confusion score for this pair is 748, derived from the frequency rank of both members and their visual similarity.

least is recorded at frequency rank #348, classified as anadj, pronounced /liːst/. lost is at rank #400, tagged as averb, pronounced /lɒst/.

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 748, this pair ranks #528,869 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of least vs lost

Shared letters: lst. Private to "least": ae. Private to "lost": o.

"least" · 5 letters · shape CVVCC  ·  "lost" · 4 letters · shape CVCC

Known mistypes of this pair

  • leastelast · laest · leasst · leastt · leats · lesat · lleast
  • lostllost · losst · lostt · lsot · olst

Frequently Asked Questions

Can "least" and "lost" be used interchangeably?
No - they are not even the same part of speech. "least" is an adjective and "lost" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "least" or "lost" show up more?
"least" is the more common of the two: it sits at frequency rank #348 in our English list, against #400 for "lost". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "least" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "lost" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #528,869 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "least" and "lost" also get mixed up with nearby pairs, the highest-scored neighbour is "lost vs LSC". 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 #528,869 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