brainy
/ˈbɹeɪni/adjective
brainy is spelled B-R-A-I-N-Y: 6 letters and 2 syllables. It appears about once in every 2 million words in written English, the 45,947th most frequent word form (wordfreq, 2021 data). As an adjective, brainy means “Very intellectually capable” (English Wiktionary, September 2026).
How many letters and syllables are in brainy?
| Letters | 6: B-R-A-I-N-Y |
|---|---|
| Syllables | 2 (from its American pronunciation) |
| In writing | about once in every 2 million words; the 45,947th most frequent word form |
| Wrong spellings searched | none measured in search |
| Same letters |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media); rhymes and same-letter words are computed by PlainSpell from its own word list.
How common is brainy?
Brainy appears about once in every 2 million words in written English, the 45,947th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce brainy?
- /ˈbɹeɪni/
Brainy has 2 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-brainy.wav, Wikimedia Commons (author and licence on each file's page).
What rhymes with brainy?
No other word on PlainSpell ends in the same sounds as brainy.
Spelled with the same letters in another order: binary.
Computed by PlainSpell from the pronunciations in the English Wiktionary (dump of September 2, 2026): a rhyme shares every sound from the last stressed vowel to the end; ordered by written frequency (wordfreq 3.1).
Forms of brainy
- brainier comparative
- brainiest superlative
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does brainy mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
informalVery intellectually capable.
She's brainy as well as pretty.
- 2
rareOf or relating to the brain.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Brainy in Spanish, French, German and Portuguese
In the sense intelligent:
| Language | Words |
|---|---|
| Spanish | sesudo |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does brainy come from?
From Middle English brayny; equivalent to brain + -y.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).