to exhaust; to use up; to deplete; to drain

(dialect) mouse; rat

to waste; to spend; to consume; to squander

time-consuming; to take a period of (x amount of time)

to require much effort

to consume; to use up; to deplete; to expend; (old) news; mail; message

news of sb's death; sad news

low consumption (energy, fuel etc)

damage (e.g. to goods in transit)

internal friction; internal dissipation of energy (in mechanics); fig. waste or discord within an organization