lexvslulWhat's the difference?

Quick tell: lex is a verb, lul is an intj, so they fill different roles in a sentence.

Which to use

“lex” is a verb and “lul” is an intj - they look or sound alike but fill different roles in a sentence.

#14,983
“lex” frequency rank
#45,496
“lul” frequency rank
60479
confusion score

Side-by-Side Comparison

Feature lex lul
Definition To perform lexical analysis; to convert a character stream to a token stream as a preliminary to parsing. Alternative form of LOL.

Where the eye mixes lex and lul

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
lex
3 ch
lul

Visual trap between lex and lul

These two trip readers on the page rather than in the ear: lex is /lɛks/ while lul is /lʌl/. 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 intj), which is usually the fastest check. Our composite confusion score for this pair is 60479, derived from the frequency rank of both members and their visual similarity.

lex is recorded at frequency rank #14,983, classified as averb, pronounced /lɛks/. lul is at rank #45,496, tagged as anintj, pronounced /lʌl/.

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 60479, this pair ranks #99,977 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of lex vs lul

Shared letters: l. Private to "lex": ex. Private to "lul": u.

"lex" · 3 letters · shape CVC  ·  "lul" · 3 letters · shape CVC

Frequently Asked Questions

Can "lex" and "lul" be used interchangeably?
No - they are not even the same part of speech. "lex" is a verb and "lul" an intj, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "lex" vs "lul" - which ranks higher?
"lex" is the more common of the two: it sits at frequency rank #14,983 in our English list, against #45,496 for "lul". 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 "lex" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "lul" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #99,977 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "lex" and "lul" also get mixed up with nearby pairs, the highest-scored neighbour is "LSC vs lul". Nearby pair

Confusion rank #99,977 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