theanine
"theanine" is a 8-letter English headword indexed on PlainSpell.
The verdict
“theanine” is uncommon English (frequency #98,794 among 3,151 “T” headwords), classed as a noun. The kind of spelling people second-guess.
- #98,794
- frequency rank, English
- 3,151
- “T” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - amino acid commonly found in tea
Corpus desk
Index EN-theanine · theanine · English
theanine · rank #98,794 · 0 variants · 0 confusables
- FREQ-RARE #98,794
- LEN-LONG 8 letters
- VOW-4 4 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 3,151
- PHOTO-FINISH that've
Nearest frequency peer: that've (-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 “theanine”
Sparse band: bars invert rank so rarer forms read shorter
- tensioner
tensioner
1,212 corpus weight
- that've
that've
1,208 corpus weight
- theanine
theanine
1,207 corpus weight
- Theodosia
Theodosia
1,206 corpus weight
- therethrough
therethrough
1,205 corpus weight
- thiopental
thiopental
1,203 corpus weight
What this shows Long-tail view: where “theanine” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | theanine |
| Language | English |
| Part of speech | Noun |
| Letters | 8 |
| Frequency rank | #98,794 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “theanine” in English
Rare enough to double-check
theanine is uncommon English at frequency #98,794 among 3,151 “T” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "amino acid commonly found in tea".
We couldn't generate a plausible misspelling set for theanine, which points to an orthography that plays by predictable English rules. We don't track a confusable pairing for this entry, which tends to mean the word is visually distinctive enough to stand on its own.
Etymologically, the entry records: Thea (“genus of tea”) + -anine The correct English form is theanine, spelled T-H-E-A-N-I-N-E.
Definition
- 1amino acid commonly found in tea
Etymology
Thea (“genus of tea”) + -anine
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 "theanine", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 8 letters (nearest by frequency rank).