leftvslessWhat's the difference?

Quick tell: left is a adjective, less is an adverb, so they fill different roles in a sentence.

Which to use

“left” is an adjective and “less” is an adverb - they look or sound alike but fill different roles in a sentence.

#215
“left” frequency rank
#305
“less” frequency rank
520
confusion score

Side-by-Side Comparison

Feature left less
Definition Designating the side of the body toward the west when one is facing north; the side of the body on which the heart is located in most humans; the opposite of right. This arrow points to the reader's left: ← comparative degree of little

Where the eye mixes left and less

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

4 ch
left
4 ch
less

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: left is /ˈlɛft/ while less is /lɛs/. 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 (adjective vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 520, derived from the frequency rank of both members and their visual similarity.

left is recorded at frequency rank #215, classified as anadj, pronounced /ˈlɛft/. less is at rank #305, tagged as anadv, pronounced /lɛs/.

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 520, this pair ranks #529,273 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of left vs less

Shared letters: el. Private to "left": ft. Private to "less": s.

"left" · 4 letters · shape CVCC  ·  "less" · 4 letters · shape CVCC

Known mistypes of this pair

  • leftelft · lefft · leftt · letf · lfet · lleft
  • lesselss · lless · lses

Frequently Asked Questions

Can "left" and "less" be used interchangeably?
No - they are not even the same part of speech. "left" is an adjective and "less" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "left" or "less"?
"left" is the more common of the two: it sits at frequency rank #215 in our English list, against #305 for "less". 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