to deform or flatten alter or destroy the structure of (something) by pressure or compression

He got his fingers crushed in the machinery

to reduce (something) to particles by pounding or grinding

Crush a pound of digestive biscuits

crushed ice

to subdue or overwhelm (somebody or something)

crush a revolt

a crushing remark

(often + into/against) to crowd or push (people, animals, etc) into a confined space

Goodness knows how many of us were crushed into that tiny lobby

to become crushed

Eggshells crush easily

a crowding together, esp of many people

a soft drink made from the juice of pressed fruit

orange crush

informal an infatuation, esp with somebody unsuitable or unattainable