drain
noun
emptying something accomplished by allowing liquid to run out of it
Synonymsdrainagetube inserted into a body cavity (as during surgery) to remove unwanted material
a pipe through which liquid is carried away
a gradual depletion of energy or resources
“a drain on resources”
“a drain of young talent by emigration”
verb
flow off gradually
“The rain water drains into this big vat”
Synonymsrun outdeplete of resources
“The exercise class drains me of energy”
empty of liquid; drain the liquid from
“We drained the oil tank”
make weak
“Life in the camp drained him”
Source: WordNet 3.1, Princeton University