LCT

noun

By · According to Wiktionary data (CC BY-SA) ·

"lct" is a 3-letter English headword indexed on PlainSpell.

The verdict

“LCT” is uncommon English (frequency #97,232 among 2,297 “L” headwords), classed as a noun. The kind of spelling people second-guess.

#97,232
frequency rank, English
2,297
“L” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A gene responsible for encoding lactase; mutations in this gene are responsible for adults' ability to digest lactose.

Corpus desk

Index EN-lct · LCT · English

LCT · rank #97,232 · 0 variants · 0 confusables

  • FREQ-RARE #97,232
  • LEN-MID 3 letters
  • VOW-0 0 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 2,297
  • PHOTO-FINISH LBA

Nearest frequency peer: LBA (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Long-tail ranks near “LCT”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “LCT” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for LCT
PropertyValue
HeadwordLCT
LanguageEnglish
Part of speechNoun
Letters3
Frequency rank#97,232
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “LCT” in English

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).LCTfalls in this rarity band:

#1#100#1K#10K#100K
← used constantlyrarely used →

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Rare peers in the same band: “LBA” (#97,231), “leachate” (#97,233), “lawgiver” (#97,230). Among 2,297 “L” headwords, “LCT” is #97,232. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

LCT is uncommon English at frequency #97,232 among 2,297 “L” headwords, classed as anoun. Rarity is why readers land here mid-draft. 5 senses are on record.

LCT has no tracked misspelling variants, typically a sign the spelling maps closely to how the word sounds. This headword has no recorded confusable partner, since its spelling is unusual enough that it doesn't cluster with a lookalike.

No documented word history exists for this headword, so its spelling is best read as a straightforward mapping from sound to letter. The correct English form is LCT, spelled L-C-T.

Definition

  1. 1
    A gene responsible for encoding lactase; mutations in this gene are responsible for adults' ability to digest lactose.
  2. 2
    Abbreviation of lactase.
  3. 3
    Initialism of landing craft tank.
  4. 4
    Initialism of limit comparison test.
  5. 5
    Initialism of luxury car tax

Recorded use

Wiktionary example

These source excerpts show how LCT appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. an all-up amount including GST and LCT (but not stamp duty, registration etc)

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "LCT"?
"LCT" is spelled L-C-T.
What does "LCT" mean?
As a noun, "LCT" means: A gene responsible for encoding lactase; mutations in this gene are responsible for adults' ability to digest lactose.
What language does "LCT" come from?
"LCT" is a English word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "LCT", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 3 letters (nearest by frequency rank).

LBA#97,231hyp#97,129NMP#97,362hax#97,098

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

Source: FrequencyWords open word-frequency list