grok
/ˈɡɹɒk/
"grok" is a 4-letter English headword indexed on PlainSpell.
The verdict
“grok” is outside the top-ranked English vocabulary, used as a verb - the kind of word writers most often double-check.
- Unranked
- below top-frequency English
- 4
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - To understand (something) intuitively, to know (something) without having to think intellectually.
| Property | Value |
|---|---|
| Headword | grok |
| Language | English |
| Part of speech | Verb |
| IPA | /ˈɡɹɒk/ |
| Letters | 4 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “grok” sits in English frequency
Spelling & Dictionary Insight
The English entry for grok is 4 letters long, classified as a verb, and transcribed in the International Phonetic Alphabet as /ˈɡɹɒk/. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.
No generated misspelling entries exist for grok in our index, suggesting the orthography follows predictable English patterns. Our dataset records no confusable match here, since nothing in our dataset looks or sounds close enough to cause mix-ups.
Etymologically, the entry records: Coined by American author and aeronautical engineer Robert A. Heinlein in 1961 in his novel Stranger in a Strange Land. Heinlein invented the word for his fictitious Martian language. It is described as meaning “to drink” and, figuratively, “to drink in all… The correct English form is grok, spelled G-R-O-K.
Definition
- 1To understand (something) intuitively, to know (something) without having to think intellectually.
- 2To fully and completely understand something in all of its details and intricacies.
Etymology
Coined by American author and aeronautical engineer Robert A. Heinlein in 1961 in his novel Stranger in a Strange Land. Heinlein invented the word for his fictitious Martian language. It is described as meaning “to drink” and, figuratively, “to drink in all available aspects of reality”, “to become one with the observed”. William Tenn later asked Heinlein if it could have been inspired by the term griggo, which featured in Tenn's Venus and the Seven Sexes (1949); Heinlein “looked startled, then thought about it for a long time (and) shrugged, (saying) ‘It's possible, very possible.’”
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). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
How do you spell "grok"?
What does "grok" mean?
How do you pronounce "grok"?
What is the origin of the word "grok"?
Is PlainSpell free to use?
Using “grok”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is G-R-O-K - every other letter order is a misspelling in standard orthography.
- Say it as /ˈɡɹɒk/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Browse more English words and confusable pairs in the same reference. English words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.