Wiktionary
do away with
vb. 1 (context transitive idiomatic informal English) to abolish; to put an end to; to eliminate 2 (context transitive idiomatic informal euphemistic English) to have someone killed
WordNet
do away with
v. terminate or take out; "Let's eliminate the course on Akkadian hieroglyphics" [syn: eliminate, get rid of]
Usage examples of "do away with".
Her behaviour, I confess, has been calculated to do away with such an idea.
Cursed be that mortal inter-indebtedness which will not do away with ledgers.
Then I'm going to get you an enchanted sword that will do away with everything it encoun.