To rack your brain is to try to think of something that you haven't thought of before. When you're stuck on a problem, you might rack your brain to see if you can come up with a solution.
She racked her brain for hours trying to think of a way to solve the problem.
After trying all the different ideas, he rack his brain for a final solution.
verb
To place in or hang on a rack.
verb
To torture (someone) on the rack.
verb
To cause (someone) to suffer pain.
verb
To stretch or strain; to harass, or oppress by extortion.
verb
To put the balls into the triangular rack and set them in place on the table.
Synonyms:
verb
To strike a male in the testicles.
verb
To (manually) load (a round of ammunition) from the magazine or belt into firing position in an automatic or semiautomatic firearm.
verb
To move the slide bar on a shotgun in order to chamber the next round.
verb
To wash (metals, ore, etc.) on a rack.
verb
To bind together, as two ropes, with cross turns of yarn, marline, etc.
verb
(structural engineering) Tending to shear a structure (that is, force it to move in different directions at different points).
Synonyms:
verb
To stretch a person's joints.
verb
To drive; move; go forward rapidly; stir
verb
To fly, as vapour or broken clouds
verb
To clarify, and thereby deter further fermentation of, beer, wine or cider by draining or siphoning it from the dregs.
verb
(of a horse) To amble fast, causing a rocking or swaying motion of the body; to pace.
1
The ball was required to win the rack.
2
At the end of the rack is mounted the corrosion coupon.
3
I put balls on the rack and left it there.
4
He grabs a towel off of the rack.
5
The membrane modules are mounted compactly in a rack.
6
The reverse applies if the rack is behind the axe.
7
A tachometer needle is coupled to the rack and pinion assembly.
8
Air is drawn in at the front of the rack and exhausted at the rear.
9
Put the pans on the center rack of the preheated oven.
10
Diagonal bracing is used to prevent racking of the structure.