to take over for someone, typically temporarily, so that they can be freed from their duties

to alleviate or mitigate a hardship, injustice, or oppressive situation through legal or official action

to provide assistance, reinforcements, or supplies to a location or group of people under siege or in a state of emergency

to break up monotony or boredom by adding diversity or change

to lessen or mitigate the intensity or burden of a situation

to take something away through stealing or cunning actions