cause the water or other liquid in (something) to run out, leaving it empty or dry

we drained the swimming pool

deprive of strength or vitality

his limbs were drained of all energy

Ruth slumped down in her seat, drained by all that had happened

(of a player) hole (a putt)

whenever he did hit a green, he drained the putt

a channel or pipe carrying off surplus liquid, especially rainwater or liquid waste

a thing that uses up a particular resource

nuclear power is a serious drain on the public purse