brainwork

I may have brainwork to do, or something important to think about There is no comparison.

Get Dilly to make you that boiled rice every night after your brainwork.

And even then he will sometimes say, "How about the brainwork?"

Margaret was smiling wonderingly up at this prettiness, but Kitty seemed to be doing some brainwork.

The place of honour was reserved for those crafts in which brainwork took precedence over manual work.

Extremely clever at any form of brainwork, she was gauche and brusque in her manners, and totally lacking in perception.

No amount of brainwork has conjured any sense from Iffley, and the etymology has been placed on the shelf as “unknown”.