LeidenvslessenWhat's the difference?

Quick tell: Leiden is a name, lessen is a verb, so they fill different roles in a sentence.

Which to use

“Leiden” is a name and “lessen” is a verb - they look or sound alike but fill different roles in a sentence.

#30,860
“Leiden” frequency rank
#17,888
“lessen” frequency rank
48748
confusion score

Side-by-Side Comparison

Feature Leiden lessen
Definition A city in South Holland, Netherlands, on the Old Rhine, seat of a famous Dutch university. To make less; to diminish; to reduce.

Where the spellings diverge

Shared letters are muted; the letters that actually set Leiden and lessen apart are highlighted. They share 4 letters in sequence, which is exactly why the eye skips the difference.

6 ch
Leiden
6 ch
lessen

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: Leiden is /ˈlaɪdən/ while lessen is /ˈlɛsən/. 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 (name vs verb), which is usually the fastest check. Our composite confusion score for this pair is 48748, derived from the frequency rank of both members and their visual similarity.

Leiden is recorded at frequency rank #30,860, classified as aname, pronounced /ˈlaɪdən/. lessen is at rank #17,888, tagged as averb, pronounced /ˈlɛsən/.

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 48748, this pair ranks #190,128 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Leiden vs lessen

Shared letters: eln. Private to "Leiden": di. Private to "lessen": s.

"Leiden" · 6 letters · shape CVVCVC  ·  "lessen" · 6 letters · shape CVCCVC

Known mistypes of this pair

  • Leideneliden · ledien · leidden · leidenn · leidne · leiedn · lieden · lleiden
  • lessenelssen · lesen · lesesn · lessenn · lessne · llessen · lsesen

Frequency comparison

Leiden#30,860
lessen#17,888

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "Leiden" and "lessen" be used interchangeably?
No - they are not even the same part of speech. "Leiden" is a name and "lessen" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "Leiden" or "lessen"?
"lessen" is the more common of the two: it sits at frequency rank #17,888 in our English list, against #30,860 for "Leiden". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering Leiden vs lessen

The fastest way to pick the right one every time.

  • Check the role first: if you need a name, it's “Leiden”; for a verb, it's “lessen”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “Leiden” entry
  • Browse more pairs most likely to be confused. Most confusable

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

Source: FrequencyWords open word-frequency list