to prepare verbally, either for written or spoken delivery; "prepare a report"; "prepare a speech"
lead up to and soften by sounding the dissonant note in it as a consonant note in the preceding chord; "prepare the discord in bar 139"
prepare (someone) for a future role or function; "He is grooming his son to become his successor"; "The prince was prepared to become King one day"; "They trained him to be a warrior"
based on or subject to individual discretion or preference or sometimes impulse or caprice; "an arbitrary decision"; "the arbitrary rule of a dictator"; "an arbitrary penalty"; "of arbitrary size and shape"; "an arbitrary choice"; "arbitrary division of the group into halves"