Longman Dictionary of Contemporary English homepage

two-edged

adjective
     
Related topics: Technology
two-edged
1 having two effects or meanings, one good and one bad:
a two-edged comment
a two-edged sword (=something that has as many bad results as good ones)
Strong leadership is a two-edged sword.
2DT having two edges that can cut:
a two-edged blade

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