thinko
/θɪŋkəʊ/
"thinko" is a 6-letter English headword indexed on PlainSpell.
The verdict
“thinko” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 6
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A careless mistake made in thinking.
Corpus desk
Index EN-thinko · thinko · English
thinko · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-LONG 6 letters
- VOW-2 2 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "T" thin
- PHOTO-UNK Peer pending
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.
| Property | Value |
|---|---|
| Headword | thinko |
| Language | English |
| Part of speech | Noun |
| IPA | /θɪŋkəʊ/ |
| Letters | 6 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “thinko” in English
Rare enough to double-check
thinko is uncommon English outside the top frequency list, classed as anoun, transcribed /θɪŋkəʊ/. Rarity is why readers land here mid-draft. Gloss: "A careless mistake made in thinking.".
thinko has no tracked misspelling variants, a sign its spelling follows regular English conventions. No close-neighbour confusable shows up for this headword in our dataset, since no other headword is close enough in sound or shape to pair with it.
Etymologically, the entry records: From think + -o, on the model of typo (“typographical error”). The correct English form is thinko, spelled T-H-I-N-K-O.
Definition
- 1A careless mistake made in thinking.
Recorded use
Wiktionary examplesThese source excerpts show how thinko appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
I must have done quite a thinko, but I don't remember leaving my keys in the refrigerator.
1998, K. G. Binmore, Game Theory and the Social Contract, Volume 2: Just Playing, page 34, We need to face the fact that thinkos are likely to be much more important, even though such a source of noise is much harder to model.
Etymology
From think + -o, on the model of typo (“typographical error”).
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.