brainbox
/ˈbɹeɪn(ˌ)bɒks/
brainbox noun: the cavity of the skull in which the brain is contained.
Noun
brainbox (plural brainboxes)
- The cavity of the skull in which the brain is contained.
- Holonyms: skull, cranium < head
- The compromise was to use as much of the skull as possible by pushing the eyes in towards the centre, and relegating the brain box to the rear.1985, J.D. McDonald, Australian Birds: A Popular Guide to Bird Life, Sydney: Reed Books, page 142
- Synonyms:
- braincase, brainpan, neurocranium
- The skull; the head.
- A very intelligent person.
- Synonyms:
- brain, brainiac, egghead, boffin, bright spark, geek, nerd, Poindexter, propeller head, shrewd article
Synonyms of brainbox
30 more synonymsFewer synonyms
Forms of brainbox
| plural | brainboxes |
|---|
Origin of brainbox
From brain + box.
Questions about brainbox
- What does brainbox mean?
- Brainbox means the cavity of the skull in which the brain is contained.
- What part of speech is brainbox?
- Brainbox is a noun.
- How do you pronounce brainbox?
- Brainbox is pronounced /ˈbɹeɪn(ˌ)bɒks/.
- What is the plural of brainbox?
- The plural of brainbox is brainboxes.
Words near brainbox in the dictionary
Source and license
Adapted from Wiktionary: brainbox (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
Last updated:
Pronunciation audio from Wikimedia Commons, each file under its own free license: En-au-brainbox.ogg.
Cite this entry: “brainbox.” Word.ws, https://word.ws/brainbox. Based on Wiktionary, CC BY-SA 4.0.