fall — to come or drop down suddenly to a lower position, especially to leave a standing or erect position suddenly, whether voluntarily or not: to fall on one's knees.
halt — to falter, as in speech, reasoning, etc.; be hesitant; stumble.
lower — to cause to descend; let or put down: to lower a flag.
reduce — to bring down to a smaller extent, size, amount, number, etc.: to reduce one's weight by 10 pounds.
slow — moving or proceeding with little or less than usual speed or velocity: a slow train.
slump — to drop or fall heavily; collapse: Suddenly she slumped to the floor.
stop — to cease from, leave off, or discontinue: to stop running.
abridge — to reduce the length of (a written work) by condensing or rewriting
compress — When you compress something or when it compresses, it is pressed or squeezed so that it takes up less space.
condense — If you condense something, especially a piece of writing or speech, you make it shorter, usually by including only the most important parts.
contract — A contract is a legal agreement, usually between two companies or between an employer and employee, which involves doing work for a stated sum of money.
curtail — If you curtail something, you reduce or limit it.
descend — If you descend or if you descend a staircase, you move downwards from a higher to a lower level.
go down — to move or proceed, especially to or from something: They're going by bus.