drain

(noun) emptying something accomplished by allowing liquid to run out of it. Synonyms: drainage.

(noun) tube inserted into a body cavity (as during surgery) to remove unwanted material.

(noun) a pipe through which liquid is carried away. Synonyms: drainpipe, waste pipe.

(noun) a gradual depletion of energy or resources. Examples: "A drain on resources." "A drain of young talent by emigration."

(verb) flow off gradually. Synonyms: run out. Example: "The rain water drains into this big vat."

(verb) deplete of resources. Example: "The exercise class drains me of energy."

(verb) empty of liquid; drain the liquid from. Example: "We drained the oil tank."

(verb) make weak. Synonyms: enfeeble, debilitate. Example: "Life in the camp drained him."