lacustrine
/ləˈkʌstɹɪn/
"lacustrine" is a 10-letter English headword indexed on PlainSpell.
The verdict
“lacustrine” is uncommon English (frequency #79,690 among 2,297 “L” headwords), classed as an adjective. The kind of spelling people second-guess.
- #79,690
- frequency rank, English
- 2,297
- “L” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Of or relating to lakes.
Corpus desk
Index EN-lacustrine · lacustrine · English
lacustrine · rank #79,690 · 0 variants · 0 confusables
- FREQ-RARE #79,690
- LEN-MEGA 10 letters
- VOW-4 4 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 2,297
- PHOTO-FINISH lactase
Nearest frequency peer: lactase (-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 “lacustrine”
Sparse band: bars invert rank so rarer forms read shorter
- Kumiko
Kumiko
20,315 corpus weight
- Lacombe
Lacombe
20,313 corpus weight
- lactase
lactase
20,312 corpus weight
- lacustrine
lacustrine
20,311 corpus weight
- lancing
lancing
20,308 corpus weight
- Landi
Landi
20,307 corpus weight
What this shows Long-tail view: where “lacustrine” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | lacustrine |
| Language | English |
| Part of speech | Adjective |
| IPA | /ləˈkʌstɹɪn/ |
| Letters | 10 |
| Frequency rank | #79,690 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “lacustrine” in English
Rare enough to double-check
lacustrine is uncommon English at frequency #79,690 among 2,297 “L” headwords, classed as anadjective, transcribed /ləˈkʌstɹɪn/. Rarity is why readers land here mid-draft. Gloss: "Of or relating to lakes.".
lacustrine doesn't appear in our generated misspelling index, and the word's spelling is regular enough that our generator found nothing worth flagging. Our confusable-pair dataset has no match for it, since its spelling is unusual enough that it doesn't cluster with a lookalike.
Etymologically, the entry records: From Latin lacustris, from lacus (“lake”). The correct English form is lacustrine, spelled L-A-C-U-S-T-R-I-N-E.
Definition
- 1Of or relating to lakes.
Recorded use
Wiktionary examplesThese source excerpts show how lacustrine appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
These deposits of sand have always been formed by the disintegration of a siliceous rock, and the fragments so formed have been sifted and transported by the agency of water, being finally deposited by a river either in the sea (marine deposits) or in lakes (lacustrine deposits), while the action of water, either during transport or after deposition, has…
[…]has some of these features, such as brooding one brood a year (which suggests that this species may have evolved under more lacustrine conditions).
Etymology
From Latin lacustris, from lacus (“lake”).
This word in other languages
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
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "lacustrine", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 10 letters (nearest by frequency rank).