To botch, bungle; to perform poorly on.
To damage; injure.
To manhandle; beat up; rough up.
To make a mess of; to untidy, disorder, soil, or muss.
To cause a problem with; to introduce an error or mistake in; to make muddled or confused; spoil; ruin.
To cause (another person) to make unwanted mistakes in a given task, usually through distraction or obnoxious behavior.
To make a mistake; to do something incorrectly; to perform poorly.
To discombobulate, utterly confuse, or confound psychologically; to throw into a state of mental disarray.
To adjust (a mechanism) for accurate and proper functioning.
To control or direct according to rule, principle, or law.
To put or maintain in order.
To adjust to a particular specification or requirement: regulate temperature.
To dictate policy.