Brainbox

//ˈbɹeɪn(ˌ)bɒks// noun, slang

Definitions

Noun
  1. 1
    The cavity of the skull in which the brain is contained.

    "Holonyms: skull, cranium < head"

  2. 2
    The skull; the head. slang
  3. 3
    A very intelligent person. slang

Etymology

From brain + box.

Next best steps

Mini challenge

Unscramble this word: brainbox