To exhaust one's financial resources.
At a casino etc., to win all the money that is available to be paid.
A reduction in the number of stitches, usually accomplished by suspending the stitch to be decreased from another existing stitch or by knitting it together with another stitch. See Decrease (knitting).
An amount by which a quantity is decreased.
Of a quantity, to become smaller.
To make (a quantity) smaller.